diff --git a/com.actionsoft.apps.coe.pal/template/page/pal.pl.repository.designer.view.portal.html b/com.actionsoft.apps.coe.pal/template/page/pal.pl.repository.designer.view.portal.html
index e02cd016..c75c4f4c 100755
--- a/com.actionsoft.apps.coe.pal/template/page/pal.pl.repository.designer.view.portal.html
+++ b/com.actionsoft.apps.coe.pal/template/page/pal.pl.repository.designer.view.portal.html
@@ -639,6 +639,36 @@
     <script>
         $(document).ready(function(){
             $('#content_zoom').append(Math.round(Designer.config.scale * 100) + "%")
+            var winSize = {
+                w: $(window).width() - 332,
+                h: $(window).height() - $('#toolbarName').height() - $('#tools').height() - 41 - 40 - 70    // 41为文件名行高   40为文件属性行高   70为下方评论行高
+            }
+            var designerSize = {
+                w: $("#canvas_container").width(),
+                h: $("#canvas_container").height()
+            }
+            if (designerSize.w <= designerSize.h && designerSize.h > winSize.h) {
+                resizeCanvas('height')
+            } else if(designerSize.w > designerSize.h && designerSize.w > winSize.w) {
+                resizeCanvas('width')
+            }
+            function resizeCanvas(type) {
+                if (type == 'height') {
+                    if($("#canvas_container").height() <= winSize.h) {
+                        return
+                    } else {
+                        canvasresizeMin()
+                        resizeCanvas('height')
+                    }
+                } else {
+                    if($("#canvas_container").width() <= winSize.w) {
+                        return
+                    } else {
+                        canvasresizeMin()
+                        resizeCanvas('width')
+                    }
+                }
+            }
     		var output = initOutputFileLink();
     		if (output != 0) {
     			output = 40;