diff --git a/docs/zh_CN/module/comx_gsm.md b/docs/zh_CN/module/comx_gsm.md
index 4bc40c3e..a5b8bf5e 100644
--- a/docs/zh_CN/module/comx_gsm.md
+++ b/docs/zh_CN/module/comx_gsm.md
@@ -74,6 +74,14 @@
       <td>通讯方式</td>
       <td>UART 115200bps</td>
    </tr>
+   <tr>
+      <td>净重</td>
+      <td>40g</td>
+   </tr>
+   <tr>
+      <td>模块尺寸</td>
+      <td>54*54*13.2mm</td>
+   </tr>
  </table>