diff --git a/crmeb/install/index.php b/crmeb/install/index.php
index ab30a2b2..ad96a24f 100644
--- a/crmeb/install/index.php
+++ b/crmeb/install/index.php
@@ -118,6 +118,13 @@ switch ($step) {
         	$file_put_contents = '<font color=red>[×]不支持</font>';
         	$err++;
         }
+        if(function_exists('bcadd')){
+            $bcadd = '<font color=green>[√]支持</font> ';
+        }else{
+            $bcadd= '<font color=red>[×]不支持</font>';
+            $err++;
+        }
+
         
         $folder = array(
             'install',
diff --git a/crmeb/install/templates/step2.php b/crmeb/install/templates/step2.php
index 9d871da3..ebb2a71c 100644
--- a/crmeb/install/templates/step2.php
+++ b/crmeb/install/templates/step2.php
@@ -126,6 +126,11 @@
           <td>建议开启</td>
           <td><?php echo $file_put_contents; ?></td>
           <td>--</td>
+        </tr> <tr>
+          <td>bcadd</td>
+          <td>建议开启</td>
+          <td><?php echo $bcadd; ?></td>
+          <td>--</td>
         </tr>
       </table>
     </div>