diff --git a/docs/form-config/rules.md b/docs/form-config/rules.md
index a36f386a..4d9f05d3 100644
--- a/docs/form-config/rules.md
+++ b/docs/form-config/rules.md
@@ -165,7 +165,7 @@ app.use(MagicForm, {
 | `page-fragment-select` / `ui-select` | `string \| number`；有节点树时须为已有页面片 / 组件 id |
 | `data-source-input` | `string`；`${...}` 绑定须指向已有数据源/字段 |
 | `data-source-method-select` | `[dsId, methodName]`，方法须在该数据源可选方法集中 |
-| `data-source-field-select` | 数据源路径 `string[]`；有 `fieldConfig` 且非路径值时跳过 |
+| `data-source-field-select` | 数据源路径 `Array<string \| number>`。`number` 只能作数组下标；数字字符串先按字段名匹配，没有同名字段时才作下标。元素结构为空的下标，在限定了具体字段类型时不通过。有 `fieldConfig` 且非路径值时按 `fieldConfig` 校验 |
 | `data-source-select` | `value: 'id'` 为已有 ds id；否则为含 `isBindDataSource` + `dataSourceId` 的对象 |
 | `code-select` | `{ hookType: 'code', hookData }` 的浅层结构校验（`codeId` 存在性 / 数据源方法存在性由内部 `code-select-col`、`data-source-method-select` 单元格各自校验，只标红出错单元格） |
 | `data-source-fields` / `data-source-mocks` / `data-source-methods` | 数组 + 浅层结构（`name`/`type`、`title`/`enable`/`data`、`content`/`params` 等） |
diff --git a/packages/editor/src/fields/DataSourceFieldSelect/Index.vue b/packages/editor/src/fields/DataSourceFieldSelect/Index.vue
index f0b51802..84e6d0e0 100644
--- a/packages/editor/src/fields/DataSourceFieldSelect/Index.vue
+++ b/packages/editor/src/fields/DataSourceFieldSelect/Index.vue
@@ -51,7 +51,6 @@
 <script setup lang="ts">
 import { computed, inject, ref, resolveComponent, watch } from 'vue';
 
-import { DataSchema } from '@tmagic/core';
 import { TMagicButton, tMagicMessage, TMagicTooltip } from '@tmagic/design';
 import {
   type ContainerChangeEventData,
@@ -64,6 +63,7 @@ import { DATA_SOURCE_FIELDS_SELECT_VALUE_PREFIX, removeDataSourceFieldPrefix } f
 
 import MIcon from '@editor/components/Icon.vue';
 import { useServices } from '@editor/hooks/use-services';
+import { resolveFieldByPath } from '@editor/utils/data-source';
 
 import dataSourceIcon from '../../icons/DatasourceIcon.vue';
 
@@ -175,11 +175,8 @@ const onChangeHandler = (value: string[], eventData?: ContainerChangeEventData)
     return;
   }
 
-  let fields = dataSource.fields || [];
-  let field: DataSchema | undefined;
-  (keys || []).forEach((key) => {
-    field = fields.find((f) => f.name === key);
-    fields = field?.fields || [];
+  const { field, ok, untypedArrayElement } = resolveFieldByPath(dataSource.fields, keys, {
+    allowArrayIndex: true,
   });
 
   const dataSourceFieldType = props.config.dataSourceFieldType || ['any'];
@@ -187,11 +184,14 @@ const onChangeHandler = (value: string[], eventData?: ContainerChangeEventData)
     dataSourceFieldType.push('any');
   }
 
-  if (
-    !keys.length ||
-    (field?.type &&
-      (field.type === 'any' || dataSourceFieldType.includes('any') || dataSourceFieldType.includes(field.type)))
-  ) {
+  // 未声明元素结构的下标不是显式 any，限定了具体类型时不放行
+  const typeMatches =
+    ok &&
+    !!field?.type &&
+    (dataSourceFieldType.includes('any') ||
+      (!untypedArrayElement && (field.type === 'any' || dataSourceFieldType.includes(field.type))));
+
+  if (!keys.length || typeMatches) {
     emit('change', value, eventData);
   } else {
     tMagicMessage.error(`请选择类型为${dataSourceFieldType.join('或')}的字段`);
diff --git a/packages/editor/src/fields/configs/displayConds.ts b/packages/editor/src/fields/configs/displayConds.ts
index 884b245c..dd974d73 100644
--- a/packages/editor/src/fields/configs/displayConds.ts
+++ b/packages/editor/src/fields/configs/displayConds.ts
@@ -20,7 +20,7 @@ import type { DisplayCondsConfig, FormState, GroupListConfig } from '@tmagic/for
 import { removeDataSourceFieldPrefix } from '@tmagic/utils';
 
 import dataSourceService from '@editor/services/dataSource';
-import { getCascaderOptionsFromFields, getFieldType } from '@editor/utils/data-source';
+import { getCascaderOptionsFromFields, getFieldType, resolveFieldByPath } from '@editor/utils/data-source';
 
 import { stickyAddButton } from './stickyAddButton';
 
@@ -38,7 +38,7 @@ export const createDisplayCondsConfig = (
   name: string,
   parentFields: string[],
 ): GroupListConfig => {
-  const resolveFieldPath = (path: string[]) => {
+  const resolveFieldPath = (path: Array<string | number>) => {
     const [id, ...fieldNames] = path;
     const ds = id ? dataSourceService.getDataSourceById(removeDataSourceFieldPrefix(`${id}`)) : undefined;
     return { ds, fieldNames };
@@ -69,13 +69,13 @@ export const createDisplayCondsConfig = (
             return [];
           }
 
-          let fields = ds.fields || [];
-          fieldNames.forEach((key) => {
-            const field = fields.find((f) => f.name === key);
-            fields = field?.fields || [];
-          });
-
-          return getCascaderOptionsFromFields(fields, ['string', 'number', 'boolean', 'any']);
+          const resolved = resolveFieldByPath(ds.fields, fieldNames, { allowArrayIndex: true });
+          return getCascaderOptionsFromFields(resolved.ok ? resolved.fields : [], [
+            'string',
+            'number',
+            'boolean',
+            'any',
+          ]);
         },
         name: 'field',
         value: 'key',
diff --git a/packages/editor/src/utils/data-source/index.ts b/packages/editor/src/utils/data-source/index.ts
index 16797d44..f79c4ad6 100644
--- a/packages/editor/src/utils/data-source/index.ts
+++ b/packages/editor/src/utils/data-source/index.ts
@@ -1,6 +1,6 @@
 import type { DataSchema, DataSourceFieldType, DataSourceSchema } from '@tmagic/core';
 import { type CascaderOption, type FormConfig, type TabConfig } from '@tmagic/form';
-import { dataSourceTemplateRegExp, getKeysArray, isNumber } from '@tmagic/utils';
+import { dataSourceTemplateRegExp, getKeysArray, isArrayIndex, isNumber } from '@tmagic/utils';
 
 import BaseFormConfig from './formConfigs/base';
 import HttpFormConfig from './formConfigs/http';
@@ -239,34 +239,86 @@ export const getCascaderOptionsFromFields = (
 /**
  * 按字段名路径下钻 DataSchema。
  * @param skipNumberIndices 为 true 时跳过数字段（模板路径中的数组下标，如 arr[0].x）
+ * @param allowArrayIndex 为 true 时识别数组下标。`number` 只能是下标；数字字符串先按当前层字段名匹配，没有同名字段时才当中下标
  */
 export const resolveFieldByPath = (
   fields: DataSchema[] | undefined,
-  fieldNames: string[],
-  options: { skipNumberIndices?: boolean } = {},
-): { ok: boolean; field?: DataSchema; fields: DataSchema[]; failedName?: string } => {
+  fieldNames: Array<string | number>,
+  options: { skipNumberIndices?: boolean; allowArrayIndex?: boolean } = {},
+): {
+  ok: boolean;
+  field?: DataSchema;
+  fields: DataSchema[];
+  failedName?: string;
+  /** number 下标没有紧跟在数组字段后面 */
+  invalidArrayIndex?: boolean;
+  /** 路径停在数组下标上，当前值是数组元素 */
+  arrayElement?: boolean;
+  /** 数组没有子字段，元素类型未知 */
+  untypedArrayElement?: boolean;
+} => {
   let currentFields = fields || [];
   let field: DataSchema | undefined;
+  /** 刚消费了数组下标，路径若在此结束则当前值是数组元素 */
+  let atArrayElement = false;
+  let arrayIndexName = '';
 
   for (const name of fieldNames) {
     if (options.skipNumberIndices && isNumber(name)) {
       continue;
     }
-    if (!currentFields.length) {
-      return { ok: false, fields: currentFields, failedName: name };
+
+    const segment = `${name}`;
+    // number 不能当字段名。数字字符串仅在当前层没有同名字段时才当中下标，避免盖住名为 "0" 的子字段。
+    if (options.allowArrayIndex && isArrayIndex(name) && field?.type === 'array' && !atArrayElement) {
+      const namedField = typeof name === 'string' ? currentFields.find((item) => item.name === segment) : undefined;
+      if (!namedField) {
+        atArrayElement = true;
+        arrayIndexName = segment;
+        continue;
+      }
     }
-    field = currentFields.find((item) => item.name === name);
+
+    if (options.allowArrayIndex && typeof name === 'number') {
+      return { ok: false, fields: currentFields, failedName: segment, invalidArrayIndex: true };
+    }
+
+    atArrayElement = false;
+
+    if (!currentFields.length) {
+      return { ok: false, fields: currentFields, failedName: segment };
+    }
+    field = currentFields.find((item) => item.name === segment);
     if (!field) {
-      return { ok: false, fields: currentFields, failedName: name };
+      return { ok: false, fields: currentFields, failedName: segment };
     }
     currentFields = field.fields || [];
   }
 
+  if (atArrayElement && field?.type === 'array') {
+    const elementFields = field.fields || [];
+    const untypedArrayElement = elementFields.length === 0;
+    return {
+      ok: true,
+      arrayElement: true,
+      untypedArrayElement,
+      field: {
+        name: arrayIndexName,
+        // 有子字段时元素是这些字段组成的对象；没有子字段时类型未知，不能当成显式 any
+        type: untypedArrayElement ? 'any' : 'object',
+        fields: elementFields,
+      },
+      fields: elementFields,
+    };
+  }
+
   return { field, ok: true, fields: currentFields };
 };
 
-export const getFieldType = (ds: DataSourceSchema | undefined, fieldNames: string[]) => {
-  const { ok, field } = resolveFieldByPath(ds?.fields, fieldNames);
-  if (!ok) return '';
+export const getFieldType = (ds: DataSourceSchema | undefined, fieldNames: Array<string | number>) => {
+  const { ok, field, untypedArrayElement } = resolveFieldByPath(ds?.fields, fieldNames, {
+    allowArrayIndex: true,
+  });
+  if (!ok || untypedArrayElement) return '';
   return field?.type || '';
 };
diff --git a/packages/editor/src/utils/type-match-rules.ts b/packages/editor/src/utils/type-match-rules.ts
index fc6fcd31..d4fadf98 100644
--- a/packages/editor/src/utils/type-match-rules.ts
+++ b/packages/editor/src/utils/type-match-rules.ts
@@ -31,6 +31,7 @@ import {
   DATA_SOURCE_SET_DATA_METHOD_NAME,
   dataSourceTemplateRegExp,
   getKeysArray,
+  isArrayIndex,
   removeDataSourceFieldPrefix,
 } from '@tmagic/utils';
 
@@ -211,7 +212,7 @@ const displayCondSuggestion = (): string => {
 };
 
 const validateDataSourceFieldPath = (
-  path: string[],
+  path: Array<string | number>,
   options: {
     dataSourceId?: string;
     dataSourceFieldType?: DataSourceFieldType[];
@@ -239,8 +240,17 @@ const validateDataSourceFieldPath = (
     return undefined;
   }
 
-  const { field, ok, fields, failedName } = resolveFieldByPath(ds.fields, path);
+  const { field, ok, fields, failedName, invalidArrayIndex, arrayElement, untypedArrayElement } = resolveFieldByPath(
+    ds.fields,
+    path,
+    {
+      allowArrayIndex: true,
+    },
+  );
   if (!ok) {
+    if (invalidArrayIndex) {
+      return defaultMessage(options.message, `数组下标(${failedName})只能接在数组字段后面`);
+    }
     return defaultMessage(
       options.message,
       `数据源字段(${failedName})不存在`,
@@ -253,6 +263,13 @@ const validateDataSourceFieldPath = (
     return undefined;
   }
 
+  if (untypedArrayElement) {
+    return defaultMessage(
+      options.message,
+      `数组下标(${field?.name ?? path[path.length - 1]})的元素类型未定义，请选择具体字段`,
+    );
+  }
+
   const leafType = field?.type || 'any';
   if (leafType !== 'any' && !allowedTypes.includes(leafType)) {
     const fieldName = field?.name || path[path.length - 1];
@@ -260,7 +277,9 @@ const validateDataSourceFieldPath = (
     // 文案已点明当前字段类型与要求类型，无需再列同级可选字段
     return defaultMessage(
       options.message,
-      `请选择类型为${allowedTypes.join('或')}的字段，字段(${fieldName})的类型为${leafType}`,
+      arrayElement
+        ? `请选择类型为${allowedTypes.join('或')}的字段，数组元素的类型为${leafType}`
+        : `请选择类型为${allowedTypes.join('或')}的字段，字段(${fieldName})的类型为${leafType}`,
     );
   }
 };
@@ -437,8 +456,12 @@ const validateDataSourceInput: TypeMatchValidator = (value, { message }) => {
 const validateDataSourceMethodSelect: TypeMatchValidator = (value, { message }) =>
   validateDataSourceMethodTuple(value, message);
 
-const isDataSourceFieldPathValue = (value: any, config: any): value is string[] => {
-  if (!Array.isArray(value) || !value.length || value.some((item) => typeof item !== 'string')) {
+/** 字段名，或非负整数下标（number）。数字字符串本身是 string，走字段名分支。 */
+const isDataSourceFieldPathSegment = (item: unknown): item is string | number =>
+  typeof item === 'string' || (typeof item === 'number' && isArrayIndex(item));
+
+const isDataSourceFieldPathValue = (value: any, config: any): value is Array<string | number> => {
+  if (!Array.isArray(value) || !value.length || value.some((item) => !isDataSourceFieldPathSegment(item))) {
     return false;
   }
   if (config.dataSourceId) {
@@ -488,16 +511,29 @@ export const validateDataSourceFieldSelect = (
     }
   }
 
-  if (!Array.isArray(value) || value.some((item) => typeof item !== 'string')) {
-    return defaultMessage(message, `${value}类型应为字符串数组`, dataSourceFieldPathSuggestion());
+  if (!Array.isArray(value) || value.some((item) => !isDataSourceFieldPathSegment(item))) {
+    return defaultMessage(
+      message,
+      `${value}类型应为字符串数组，数组字段后可接数字下标`,
+      dataSourceFieldPathSuggestion(),
+    );
   }
 
   // 未指定 dataSourceId 时，路径首项为数据源 id，其余为字段名。
   // value 模式的首项带 ds-field:: 前缀、key 模式不带，removeDataSourceFieldPrefix 对后者是幂等的，无需分支。
+  // 数组下标只出现在字段段，数据源 id 仍必须是字符串。
   let dataSourceId = config.dataSourceId ? `${config.dataSourceId}` : undefined;
-  let fieldNames = value;
+  let fieldNames: Array<string | number> = value;
   if (!dataSourceId) {
-    dataSourceId = value.length ? removeDataSourceFieldPrefix(value[0]) : undefined;
+    const dsId = value[0];
+    if (value.length && typeof dsId !== 'string') {
+      return defaultMessage(
+        message,
+        `${value}类型应为字符串数组，数组字段后可接数字下标`,
+        dataSourceFieldPathSuggestion(),
+      );
+    }
+    dataSourceId = value.length ? removeDataSourceFieldPrefix(dsId) : undefined;
     fieldNames = value.slice(1);
   }
 
diff --git a/packages/editor/tests/unit/utils/data-source.spec.ts b/packages/editor/tests/unit/utils/data-source.spec.ts
index 561552fc..a4306855 100644
--- a/packages/editor/tests/unit/utils/data-source.spec.ts
+++ b/packages/editor/tests/unit/utils/data-source.spec.ts
@@ -105,8 +105,16 @@ describe('data-source utils', () => {
       fields: [],
     });
     expect(resolveFieldByPath(fields, ['obj']).field?.name).toBe('obj');
-    expect(resolveFieldByPath(fields, ['unknown'])).toEqual({ ok: false, fields, failedName: 'unknown' });
-    expect(resolveFieldByPath(undefined, ['x'])).toEqual({ ok: false, fields: [], failedName: 'x' });
+    expect(resolveFieldByPath(fields, ['unknown'])).toEqual({
+      ok: false,
+      fields,
+      failedName: 'unknown',
+    });
+    expect(resolveFieldByPath(undefined, ['x'])).toEqual({
+      ok: false,
+      fields: [],
+      failedName: 'x',
+    });
     expect(resolveFieldByPath(fields, []).ok).toBe(true);
   });
 
@@ -129,14 +137,123 @@ describe('data-source utils', () => {
     expect(failed.failedName).toBe('missing');
   });
 
+  test('resolveFieldByPath 数组字段后可接下标，下标可以是 number', () => {
+    const fields: any = [
+      {
+        name: 'arr',
+        type: 'array',
+        fields: [{ name: 'item', type: 'string' }],
+      },
+      {
+        name: 'title',
+        type: 'string',
+      },
+      {
+        name: 'matrix',
+        type: 'array',
+        fields: [{ name: 'row', type: 'array', fields: [{ name: 'cell', type: 'number' }] }],
+      },
+    ];
+
+    const byNumber = resolveFieldByPath(fields, ['arr', 0, 'item'], { allowArrayIndex: true });
+    expect(byNumber.ok).toBe(true);
+    expect(byNumber.field).toMatchObject({ name: 'item', type: 'string' });
+
+    const byNumericString = resolveFieldByPath(fields, ['arr', '0', 'item'], {
+      allowArrayIndex: true,
+    });
+    expect(byNumericString.ok).toBe(true);
+    expect(byNumericString.field?.name).toBe('item');
+
+    const element = resolveFieldByPath(fields, ['arr', 0], { allowArrayIndex: true });
+    expect(element.ok).toBe(true);
+    expect(element.field).toMatchObject({ name: '0', type: 'object' });
+
+    const nested = resolveFieldByPath(fields, ['matrix', 0, 'row', 1, 'cell'], {
+      allowArrayIndex: true,
+    });
+    expect(nested.ok).toBe(true);
+    expect(nested.field).toMatchObject({ name: 'cell', type: 'number' });
+
+    const invalid = resolveFieldByPath(fields, ['title', 0], { allowArrayIndex: true });
+    expect(invalid).toMatchObject({ ok: false, invalidArrayIndex: true, failedName: '0' });
+
+    const untyped = resolveFieldByPath([{ name: 'ids', type: 'array' }] as any, ['ids', 0], {
+      allowArrayIndex: true,
+    });
+    expect(untyped.ok).toBe(true);
+    expect(untyped.untypedArrayElement).toBe(true);
+    expect(untyped.field).toMatchObject({ name: '0', type: 'any' });
+
+    // 数字字符串优先匹配同名字段；number 仍是下标，再继续找元素上的字段
+    const numericName = resolveFieldByPath(
+      [
+        {
+          name: 'arr',
+          type: 'array',
+          fields: [{ name: '0', type: 'object', fields: [{ name: 'x', type: 'string' }] }],
+        },
+      ] as any,
+      ['arr', '0', 'x'],
+      { allowArrayIndex: true },
+    );
+    expect(numericName.ok).toBe(true);
+    expect(numericName.field).toMatchObject({ name: 'x', type: 'string' });
+
+    const indexThenProp = resolveFieldByPath(
+      [
+        {
+          name: 'arr',
+          type: 'array',
+          fields: [
+            { name: '0', type: 'number' },
+            { name: 'item', type: 'string' },
+          ],
+        },
+      ] as any,
+      ['arr', 0, 'item'],
+      { allowArrayIndex: true },
+    );
+    expect(indexThenProp.ok).toBe(true);
+    expect(indexThenProp.field).toMatchObject({ name: 'item', type: 'string' });
+
+    const namedZero = resolveFieldByPath(
+      [
+        {
+          name: 'arr',
+          type: 'array',
+          fields: [
+            { name: '0', type: 'number' },
+            { name: 'item', type: 'string' },
+          ],
+        },
+      ] as any,
+      ['arr', '0'],
+      { allowArrayIndex: true },
+    );
+    expect(namedZero.arrayElement).toBeUndefined();
+    expect(namedZero.field).toMatchObject({ name: '0', type: 'number' });
+  });
+
   test('getFieldType 沿 path 取最终类型', () => {
     const ds: any = {
-      fields: [{ name: 'obj', type: 'object', fields: [{ name: 'name', type: 'string' }] }],
+      fields: [
+        { name: 'obj', type: 'object', fields: [{ name: 'name', type: 'string' }] },
+        { name: 'arr', type: 'array', fields: [{ name: 'item', type: 'string' }] },
+        { name: 'ids', type: 'array' },
+        { name: 'keyed', type: 'array', fields: [{ name: '0', type: 'number' }] },
+      ],
     };
     expect(getFieldType(ds, ['obj', 'name'])).toBe('string');
     expect(getFieldType(ds, ['obj'])).toBe('object');
     expect(getFieldType(ds, ['unknown'])).toBe('');
     expect(getFieldType(undefined, ['x'])).toBe('');
+    expect(getFieldType(ds, ['arr', 0, 'item'])).toBe('string');
+    expect(getFieldType(ds, ['arr', '0', 'item'])).toBe('string');
+    expect(getFieldType(ds, ['arr', 0])).toBe('object');
+    expect(getFieldType(ds, ['ids', 0])).toBe('');
+    expect(getFieldType(ds, ['keyed', '0'])).toBe('number');
+    expect(getFieldType(ds, ['keyed', 0, '0'])).toBe('number');
   });
 
   test('getFormConfig - 内部 tab 配置 defaultValue/display 函数行为', () => {
diff --git a/packages/editor/tests/unit/utils/typeMatchRules.spec.ts b/packages/editor/tests/unit/utils/typeMatchRules.spec.ts
index f69ae50a..0e52c7d5 100644
--- a/packages/editor/tests/unit/utils/typeMatchRules.spec.ts
+++ b/packages/editor/tests/unit/utils/typeMatchRules.spec.ts
@@ -211,7 +211,7 @@ describe('editorTypeMatchRules', () => {
   });
 
   test('data-source-field-select 校验路径与 fieldConfig 类型校验', () => {
-    expect(firstLine(run('data-source-field-select', 'x'))).toBe('x类型应为字符串数组');
+    expect(firstLine(run('data-source-field-select', 'x'))).toBe('x类型应为字符串数组，数组字段后可接数字下标');
 
     // 有 fieldConfig 且值不是数据源字段路径时，按 fieldConfig 的类型校验（text 允许数字）
     expect(run('data-source-field-select', 'text-value', { name: 'f', fieldConfig: { type: 'text' } })).toBeUndefined();
@@ -282,6 +282,95 @@ describe('editorTypeMatchRules', () => {
       }),
     ).toBe('请选择类型为string的字段，字段(a)的类型为number');
 
+    dataSourcesState.value = [
+      {
+        id: 'ds1',
+        type: 'base',
+        fields: [
+          { name: 'title', type: 'string' },
+          { name: 'arr', type: 'array', fields: [{ name: 'item', type: 'string' }] },
+          {
+            name: 'matrix',
+            type: 'array',
+            fields: [{ name: 'row', type: 'array', fields: [{ name: 'cell', type: 'number' }] }],
+          },
+        ],
+        methods: [],
+      },
+    ];
+    // 数组字段后可接下标：number 与数字字符串都合法，并继续解析元素字段
+    expect(run('data-source-field-select', ['ds1', 'arr', 0, 'item'], { value: 'key' })).toBeUndefined();
+    expect(run('data-source-field-select', ['ds1', 'arr', '0', 'item'], { value: 'key' })).toBeUndefined();
+    expect(
+      run('data-source-field-select', [`${DATA_SOURCE_FIELDS_SELECT_VALUE_PREFIX}ds1`, 'arr', 0, 'item'], {
+        fieldConfig: { type: 'text' },
+        dataSourceFieldType: ['string'],
+      }),
+    ).toBeUndefined();
+    expect(run('data-source-field-select', ['arr', 0, 'item'], { dataSourceId: 'ds1' })).toBeUndefined();
+    expect(run('data-source-field-select', ['ds1', 'matrix', 0, 'row', 1, 'cell'], { value: 'key' })).toBeUndefined();
+    expect(
+      run('data-source-field-select', ['ds1', 'arr', 0], {
+        value: 'key',
+        dataSourceFieldType: ['object'],
+      }),
+    ).toBe(undefined);
+    expect(
+      firstLine(
+        run('data-source-field-select', ['ds1', 'arr', 0], {
+          value: 'key',
+          dataSourceFieldType: ['string'],
+        }),
+      ),
+    ).toBe('请选择类型为string的字段，数组元素的类型为object');
+    expect(firstLine(run('data-source-field-select', ['ds1', 'title', 0], { value: 'key' }))).toBe(
+      '数组下标(0)只能接在数组字段后面',
+    );
+    expect(firstLine(run('data-source-field-select', ['ds1', 'arr', 1.5], { value: 'key' }))).toBe(
+      'ds1,arr,1.5类型应为字符串数组，数组字段后可接数字下标',
+    );
+    expect(firstLine(run('data-source-field-select', [0, 'item'], { value: 'key' }))).toBe(
+      '0,item类型应为字符串数组，数组字段后可接数字下标',
+    );
+
+    dataSourcesState.value = [
+      {
+        id: 'ds1',
+        type: 'base',
+        fields: [
+          {
+            name: 'arr',
+            type: 'array',
+            fields: [
+              { name: '0', type: 'number' },
+              { name: 'item', type: 'string' },
+            ],
+          },
+          { name: 'ids', type: 'array' },
+        ],
+        methods: [],
+      },
+    ];
+    // 数字字符串与子字段同名时按字段名，number 下标再取元素上的字段
+    expect(
+      run('data-source-field-select', ['ds1', 'arr', '0'], {
+        value: 'key',
+        dataSourceFieldType: ['number'],
+      }),
+    ).toBeUndefined();
+    expect(run('data-source-field-select', ['ds1', 'arr', 0, 'item'], { value: 'key' })).toBeUndefined();
+    expect(firstLine(run('data-source-field-select', ['ds1', 'arr', '0', 'item'], { value: 'key' }))).toBe(
+      '数据源字段(item)不存在',
+    );
+    expect(
+      firstLine(
+        run('data-source-field-select', ['ds1', 'ids', 0], {
+          value: 'key',
+          dataSourceFieldType: ['string'],
+        }),
+      ),
+    ).toBe('数组下标(0)的元素类型未定义，请选择具体字段');
+
     // 有 fieldConfig、未声明 value/dataSourceId 时，仍按取值中的 ds-field:: 前缀解析数据源路径
     dataSourcesState.value = [
       {
@@ -378,10 +467,20 @@ describe('editorTypeMatchRules', () => {
       'ds2不在可选项中',
     );
     expect(
-      run('data-source-select', { isBindDataSource: true, dataSourceId: 'ds1', dataSourceType: 'base' }),
+      run('data-source-select', {
+        isBindDataSource: true,
+        dataSourceId: 'ds1',
+        dataSourceType: 'base',
+      }),
     ).toBeUndefined();
     expect(
-      firstLine(run('data-source-select', { isBindDataSource: true, dataSourceId: 'ds1', dataSourceType: 'http' })),
+      firstLine(
+        run('data-source-select', {
+          isBindDataSource: true,
+          dataSourceId: 'ds1',
+          dataSourceType: 'http',
+        }),
+      ),
     ).toBe('[object Object]不在可选项中');
     expect(firstLine(run('data-source-select', { isBindDataSource: false, dataSourceId: 'ds1' }))).toBe(
       '[object Object]类型不合法',