diff --git a/src/Obj/Base/GroundSvg/_element.js b/src/Obj/Base/GroundSvg/_element.js
index 1f16498..1766d91 100644
--- a/src/Obj/Base/GroundSvg/_element.js
+++ b/src/Obj/Base/GroundSvg/_element.js
@@ -54,7 +54,7 @@ function html(that) {
         <div class="row">
             <div class="col" style="flex: 5;">
                 <span class="label">文字内容</span>
-                <input class="input" type="text" @model="textValue">
+                <input class="input" type="text" @model="textValue" maxlength="30">
             </div>
             <div class="col">
                 <button class="btn" @click="textPosPick">设置位置</span>