diff --git a/dss-orchestrator/orchestrators/dss-workflow/dss-workflow-server/src/main/java/com/webank/wedatasphere/dss/workflow/restful/NodeRestfulApi.java b/dss-orchestrator/orchestrators/dss-workflow/dss-workflow-server/src/main/java/com/webank/wedatasphere/dss/workflow/restful/NodeRestfulApi.java
index 1c61bf4d82..5ed20bbb48 100644
--- a/dss-orchestrator/orchestrators/dss-workflow/dss-workflow-server/src/main/java/com/webank/wedatasphere/dss/workflow/restful/NodeRestfulApi.java
+++ b/dss-orchestrator/orchestrators/dss-workflow/dss-workflow-server/src/main/java/com/webank/wedatasphere/dss/workflow/restful/NodeRestfulApi.java
@@ -149,7 +149,8 @@ private NodeInfoVO transfer(NodeInfo nodeInfo, HttpServletRequest req) throws IO
     public void getIcon(HttpServletResponse response, @PathVariable("nodeType") String nodeType) throws IOException {
         byte[] icon = workflowNodeService.getNodeIcon(nodeType);
         response.setContentType("image/svg+xml");
-        response.addHeader("Cache-Control", "max-age=3600, no-transform");
+        //图表缓存一天，24*60*60=86400秒
+        response.addHeader("Cache-Control", "max-age=86400, no-transform");
         response.getOutputStream().write(icon);
     }