diff --git a/apps/common/main/lib/component/Window.js b/apps/common/main/lib/component/Window.js
index 752da533e..76432c6f2 100644
--- a/apps/common/main/lib/component/Window.js
+++ b/apps/common/main/lib/component/Window.js
@@ -164,7 +164,7 @@ define([
                                     '<% if (closable!==false) %>' +
                                         '<div class="tool close img-commonctrl"></div>' +
                                     '<% %>' +
-                                    '<span class="title"><%= title %></span> ' +
+                                    '<div class="title"><%= title %></div> ' +
                                 '</div>' +
                             '<% } %>' +
                             '<div class="body"><%= tpl %></div>' +
diff --git a/apps/common/main/resources/less/window.less b/apps/common/main/resources/less/window.less
index f0661610f..77f8bc5e5 100644
--- a/apps/common/main/resources/less/window.less
+++ b/apps/common/main/resources/less/window.less
@@ -85,6 +85,12 @@
         &.resizing {
             cursor: inherit !important;
         }
+
+        .title {
+            overflow: hidden;
+            text-overflow: ellipsis;
+            white-space: nowrap;
+        }
     }
 
     > .body {