diff --git a/app/Http/Controllers/Api/DialogController.php b/app/Http/Controllers/Api/DialogController.php
index 6f5b0f451..513dcb2d8 100755
--- a/app/Http/Controllers/Api/DialogController.php
+++ b/app/Http/Controllers/Api/DialogController.php
@@ -14,6 +14,7 @@ use App\Module\Base;
 use App\Module\Timer;
 use App\Module\Extranet;
 use App\Module\TimeRange;
+use App\Module\MsgTool;
 use App\Module\Table\OnlineData;
 use App\Models\FileContent;
 use App\Models\AbstractModel;
@@ -1096,21 +1097,29 @@ class DialogController extends AbstractController
                     return Base::retError('消息发送保存失败');
                 }
                 $ext = $markdown ? 'md' : 'htm';
-                $fileData = [
-                    'name' => "LongText-{$strlen}.{$ext}",
-                    'size' => $size,
-                    'file' => $file,
-                    'path' => $path,
-                    'url' => Base::fillUrl($path),
-                    'thumb' => '',
-                    'width' => -1,
-                    'height' => -1,
-                    'ext' => $ext,
+                $text = MsgTool::truncateText($text, 500, $ext);
+                $desc = strip_tags($markdown ? Base::markdown2html($text) : $text);
+                $desc = mb_substr(WebSocketDialogMsg::filterEscape($desc), 0, 200);
+                $msgData = [
+                    'desc' => $desc,    // 描述内容
+                    'text' => $text,    // 简要内容
+                    'type' => $ext,     // 内容类型
+                    'file' => [
+                        'name' => "LongText-{$strlen}.{$ext}",
+                        'size' => $size,
+                        'file' => $file,
+                        'path' => $path,
+                        'url' => Base::fillUrl($path),
+                        'thumb' => '',
+                        'width' => -1,
+                        'height' => -1,
+                        'ext' => $ext,
+                    ],
                 ];
                 if (empty($key)) {
-                    $key = mb_substr(strip_tags($text), 0, 200);
+                    $key = $desc;
                 }
-                $result = WebSocketDialogMsg::sendMsg($action, $dialog_id, 'file', $fileData, $user->userid, false, false, $silence, $key);
+                $result = WebSocketDialogMsg::sendMsg($action, $dialog_id, 'longtext', $msgData, $user->userid, false, false, $silence, $key);
             } else {
                 $msgData = ['text' => $text];
                 if ($markdown) {
@@ -1638,6 +1647,18 @@ class DialogController extends AbstractController
             $msg = File::formatFileData($msg);
             $data['content'] = $msg['content'];
             $data['file_mode'] = $msg['file_mode'];
+        } elseif ($data['type'] == 'longtext') {
+            $data['content'] = [
+                'type' => 'htm',
+                'content' => Doo::translate("内容不存在")
+            ];
+            if (isset($data['msg']['file']['path'])) {
+                $filePath = public_path($data['msg']['file']['path']);
+                if (file_exists($filePath)) {
+                    $data['content']['type'] = $data['msg']['type'];
+                    $data['content']['content'] = file_get_contents($filePath);
+                }
+            }
         }
         //
         return Base::retSuccess('success', $data);
diff --git a/app/Models/WebSocketDialogMsg.php b/app/Models/WebSocketDialogMsg.php
index beb8de4f0..ba14d310f 100644
--- a/app/Models/WebSocketDialogMsg.php
+++ b/app/Models/WebSocketDialogMsg.php
@@ -592,6 +592,9 @@ class WebSocketDialogMsg extends AbstractModel
             case 'text':
                 return self::previewTextMsg($data['msg'], $preserveHtml);
 
+            case 'longtext':
+                return $data['msg']['desc'] ? Base::cutStr($data['msg']['desc'], 50) : ("[" . Doo::translate("长文本") . "]");
+
             case 'vote':
                 $action = Doo::translate("投票");
                 return "[{$action}] " . self::previewTextMsg($data['msg'], $preserveHtml);
@@ -774,14 +777,24 @@ class WebSocketDialogMsg extends AbstractModel
                     break;
             }
         }
-        $key = str_replace([""", "&", "<", ">"], "", $key);
-        $key = str_replace(["\r", "\n", "\t", " "], " ", $key);
-        $key = preg_replace("/^\/[A-Za-z]+/", " ", $key);
-        $key = preg_replace("/\s+/", " ", $key);
-        $this->key = trim($key);
+        $this->key = self::filterEscape($key);
         $this->save();
     }
 
+    /**
+     * 过滤转义
+     * @param $content
+     * @return string
+     */
+    public static function filterEscape($content)
+    {
+        $content = str_replace([""", "&", "<", ">"], "", $content);
+        $content = str_replace(["\r", "\n", "\t", " "], " ", $content);
+        $content = preg_replace("/^\/[A-Za-z]+/", " ", $content);
+        $content = preg_replace("/\s+/", " ", $content);
+        return trim($content);
+    }
+
     /**
      * 返回引用消息（如果是文本只取预览）
      * @return array|mixed
diff --git a/app/Module/MsgTool.php b/app/Module/MsgTool.php
new file mode 100644
index 000000000..b60b6234e
--- /dev/null
+++ b/app/Module/MsgTool.php
@@ -0,0 +1,108 @@
+<?php
+
+namespace App\Module;
+
+
+use DOMDocument;
+use League\CommonMark\CommonMarkConverter;
+use League\CommonMark\Exception\CommonMarkException;
+use League\HTMLToMarkdown\HtmlConverter;
+
+class MsgTool
+{
+    /**
+     * 截取文本并保持标签完整性
+     *
+     * @param string $text 要截取的文本
+     * @param int $length 截取长度
+     * @param string $type 文本类型 (htm 或 md)
+     * @return string 处理后的文本
+     */
+    public static function truncateText($text, $length, $type = 'htm')
+    {
+        if (empty($text) || mb_strlen($text) <= $length) {
+            return $text;
+        }
+
+        $isMd = strtolower($type) === 'md';
+
+        // 如果是Markdown，转换为HTML
+        if ($isMd) {
+            $converter = new CommonMarkConverter();
+            try {
+                $text = $converter->convert($text);
+            } catch (CommonMarkException) {
+                return "";
+            }
+        }
+
+        // 创建DOM文档
+        $dom = new DOMDocument('1.0', 'UTF-8');
+        libxml_use_internal_errors(true);
+        $dom->loadHTML(mb_convert_encoding($text, 'HTML-ENTITIES', 'UTF-8'));
+        libxml_clear_errors();
+
+        // 获取body元素
+        $body = $dom->getElementsByTagName('body')->item(0);
+        $truncatedHtml = '';
+        $currentLength = 0;
+
+        // 递归函数来遍历节点并截取内容
+        self::traverseNodes($body, $currentLength, $length, $truncatedHtml);
+
+        // 如果是Markdown，转换回Markdown
+        if ($isMd) {
+            $converter = new HtmlConverter();
+            $truncatedHtml = $converter->convert($truncatedHtml);
+        }
+
+        return $truncatedHtml;
+    }
+
+    /**
+     * 递归遍历节点
+     * @param $node
+     * @param $currentLength
+     * @param $length
+     * @param $truncatedHtml
+     * @return void
+     */
+    private static function traverseNodes($node, &$currentLength, $length, &$truncatedHtml)
+    {
+        foreach ($node->childNodes as $child) {
+            if ($currentLength >= $length) {
+                break;
+            }
+
+            if ($child->nodeType === XML_TEXT_NODE) {
+                $textContent = $child->textContent;
+                $remainingLength = $length - $currentLength;
+
+                if (mb_strlen($textContent) > $remainingLength) {
+                    $truncatedHtml .= htmlspecialchars(mb_substr($textContent, 0, $remainingLength) . '...');
+                    $currentLength += $remainingLength;
+                } else {
+                    $truncatedHtml .= htmlspecialchars($textContent);
+                    $currentLength += mb_strlen($textContent);
+                }
+            } elseif ($child->nodeType === XML_ELEMENT_NODE) {
+                $truncatedHtml .= '<' . $child->nodeName;
+
+                // 添加属性
+                if ($child->hasAttributes()) {
+                    foreach ($child->attributes as $attr) {
+                        $truncatedHtml .= ' ' . $attr->nodeName . '="' . htmlspecialchars($attr->nodeValue) . '"';
+                    }
+                }
+
+                $truncatedHtml .= '>';
+
+                self::traverseNodes($child, $currentLength, $length, $truncatedHtml);
+
+                if ($currentLength < $length || $child->firstChild) {
+                    $truncatedHtml .= '</' . $child->nodeName . '>';
+                }
+            }
+        }
+    }
+}
diff --git a/composer.json b/composer.json
index 6d24cee3c..280cc7dba 100644
--- a/composer.json
+++ b/composer.json
@@ -10,6 +10,7 @@
     "require": {
         "php": "^8.0",
         "ext-curl": "*",
+        "ext-dom": "*",
         "ext-gd": "*",
         "ext-imagick": "*",
         "ext-json": "*",
diff --git a/language/original-api.txt b/language/original-api.txt
index 84003e7bc..6e148d7d1 100644
--- a/language/original-api.txt
+++ b/language/original-api.txt
@@ -802,3 +802,6 @@ webhook地址最长仅支持255个字符。
 更新子任务标签
 
 AI机器人不存在
+
+内容不存在
+长文本
diff --git a/language/original-web.txt b/language/original-web.txt
index 05d16ceff..2075b3d2d 100644
--- a/language/original-web.txt
+++ b/language/original-web.txt
@@ -1903,3 +1903,5 @@ WiFi签到延迟时长为±1分钟。
 请选择示例标签
 全部保存成功
 
+消息详情
+长文本
diff --git a/resources/assets/js/functions/web.js b/resources/assets/js/functions/web.js
index 1cbd55b77..0a3413c1c 100755
--- a/resources/assets/js/functions/web.js
+++ b/resources/assets/js/functions/web.js
@@ -401,6 +401,8 @@ import {convertLocalResourcePath} from "../components/Replace/utils";
             switch (data.type) {
                 case 'text':
                     return $A.getMsgTextPreview(data.msg, imgClassName)
+                case 'longtext':
+                    return data.msg.desc ? $A.cutString(data.msg.desc, 50) : ("[" + $A.L('长文本') + "]")
                 case 'vote':
                     return `[${$A.L('投票')}]` + $A.getMsgTextPreview(data.msg, imgClassName)
                 case 'word-chain':
diff --git a/resources/assets/js/pages/manage/components/DialogView/index.vue b/resources/assets/js/pages/manage/components/DialogView/index.vue
index 96148d191..023f40c11 100644
--- a/resources/assets/js/pages/manage/components/DialogView/index.vue
+++ b/resources/assets/js/pages/manage/components/DialogView/index.vue
@@ -27,6 +27,8 @@
             <div ref="content" class="dialog-content" :class="contentClass">
                 <!--文本-->
                 <TextMsg v-if="msgData.type === 'text'" :msgId="msgData.id" :msg="msgData.msg" @viewText="viewText"/>
+                <!--长文本-->
+                <LongTextMsg v-else-if="msgData.type === 'longtext'" :msgId="msgData.id" :msg="msgData.msg" @viewText="viewText" @downFile="downFile"/>
                 <!--文件-->
                 <FileMsg v-else-if="msgData.type === 'file'" :msg="msgData.msg" @viewFile="viewFile" @downFile="downFile"/>
                 <!--录音-->
@@ -177,6 +179,7 @@ import {mapGetters, mapState} from "vuex";
 import longpress from "../../../../directives/longpress";
 
 import TextMsg from "./text.vue";
+import LongTextMsg from "./longtext.vue";
 import FileMsg from "./file.vue";
 import RecordMsg from "./record.vue";
 import LocationMsg from "./location.vue";
@@ -199,6 +202,7 @@ export default {
         MeetingMsg,
         LocationMsg,
         RecordMsg,
+        LongTextMsg,
         TextMsg,
         FileMsg,
         WCircle
diff --git a/resources/assets/js/pages/manage/components/DialogView/longtext.vue b/resources/assets/js/pages/manage/components/DialogView/longtext.vue
new file mode 100644
index 000000000..78b45ca50
--- /dev/null
+++ b/resources/assets/js/pages/manage/components/DialogView/longtext.vue
@@ -0,0 +1,30 @@
+<template>
+    <div class="content-text no-dark-content">
+        <DialogMarkdown v-if="msg.type === 'md'" @click="viewText" :text="msg.text"/>
+        <pre v-else @click="viewText" v-html="$A.formatTextMsg(msg.text, userId)"></pre>
+
+        <div class="content-longtext-footer">
+            <span @click="downFile">{{$L('查看详情')}}</span>
+        </div>
+    </div>
+</template>
+
+<script>
+import DialogMarkdown from "../DialogMarkdown.vue";
+
+export default {
+    components: {DialogMarkdown},
+    props: {
+        msgId: Number,
+        msg: Object,
+    },
+    methods: {
+        viewText(e) {
+            this.$emit('viewText', e);
+        },
+        downFile() {
+            this.$emit('downFile');
+        },
+    },
+}
+</script>
diff --git a/resources/assets/js/pages/manage/components/DialogWrapper.vue b/resources/assets/js/pages/manage/components/DialogWrapper.vue
index bc291eec3..44a6fb0c9 100644
--- a/resources/assets/js/pages/manage/components/DialogWrapper.vue
+++ b/resources/assets/js/pages/manage/components/DialogWrapper.vue
@@ -3644,6 +3644,10 @@ export default {
             if (!$A.isJson(data)) {
                 data = this.operateItem
             }
+            if (data.type === 'longtext') {
+                this.onViewFile(data)
+                return;
+            }
             $A.modalConfirm({
                 language: false,
                 title: this.$L('下载文件'),
diff --git a/resources/assets/js/pages/single/fileMsg.vue b/resources/assets/js/pages/single/fileMsg.vue
index 7026dbbc9..5eb0c2759 100644
--- a/resources/assets/js/pages/single/fileMsg.vue
+++ b/resources/assets/js/pages/single/fileMsg.vue
@@ -7,6 +7,10 @@
             <TEditor v-else-if="isType('text')" :value="msgDetail.content.content" height="100%" readOnly/>
             <Drawio v-else-if="isType('drawio')" v-model="msgDetail.content" :title="msgDetail.msg.name" readOnly/>
             <Minder v-else-if="isType('mind')" :value="msgDetail.content" readOnly/>
+            <template v-else-if="msgDetail.type === 'longtext'">
+                <VMPreview v-if="msgDetail.content.type === 'md'" :value="msgDetail.content.content"/>
+                <div v-else class="view-code" v-html="$A.formatTextMsg(msgDetail.content.content, userId)"></div>
+            </template>
             <template v-else-if="isType('code')">
                 <div v-if="isLongText(msgDetail.msg.name)" class="view-code" v-html="$A.formatTextMsg(msgDetail.content.content, userId)"></div>
                 <AceEditor v-else v-model="msgDetail.content.content" :ext="msgDetail.msg.ext" class="view-editor" readOnly/>
@@ -105,7 +109,10 @@ export default {
         },
 
         title() {
-            const {msg} = this.msgDetail;
+            const {type, msg} = this.msgDetail;
+            if (type === 'longtext') {
+                return this.$L('消息详情');
+            }
             if (msg && msg.name) {
                 return msg.name;
             }
diff --git a/resources/assets/sass/pages/components/dialog-wrapper.scss b/resources/assets/sass/pages/components/dialog-wrapper.scss
index 04b0ce482..560147d83 100644
--- a/resources/assets/sass/pages/components/dialog-wrapper.scss
+++ b/resources/assets/sass/pages/components/dialog-wrapper.scss
@@ -659,6 +659,7 @@
                 position: relative;
 
                 &.text,
+                &.longtext,
                 &.record,
                 &.word-chain {
                     max-width: 70%;
@@ -1460,6 +1461,19 @@
                             }
                         }
 
+                        .content-longtext-footer {
+                            display: flex;
+                            align-items: center;
+                            justify-content: center;
+                            margin-top: 12px;
+                            border-top: 1px solid rgba(227, 227, 227, 0.42);
+                            padding-top: 12px;
+                            padding-bottom: 2px;
+                            > span {
+                                cursor: pointer;
+                            }
+                        }
+
                         .mention {
                             color: $flow-status-end-color;
                             background-color: transparent;