diff --git a/public/react/src/modules/courses/shixunHomework/ShixunhomeWorkItem.js b/public/react/src/modules/courses/shixunHomework/ShixunhomeWorkItem.js
index 006b10fb4..085e7619f 100644
--- a/public/react/src/modules/courses/shixunHomework/ShixunhomeWorkItem.js
+++ b/public/react/src/modules/courses/shixunHomework/ShixunhomeWorkItem.js
@@ -381,7 +381,7 @@ class ShixunhomeWorkItem extends Component{
                 {
                   discussMessage && discussMessage.upper_category_name &&
                   <ConditionToolTip title={discussMessage.upper_category_name} condition={ discussMessage.upper_category_name.length > 22 }>
-                    { <span className="mr15 color-grey9 task-hide" style={discussMessage.time_status===1||discussMessage.time_status===2||discussMessage.time_status===3||discussMessage.time_status===4?{"maxWidth":"230px"}:{"maxWidth":"272px"}} title={discussMessage.upper_category_name}>{discussMessage.upper_category_name}</span>}
+                    { <span className="mr15 color-grey9 task-hide" style={discussMessage.time_status===1||discussMessage.time_status===2||discussMessage.time_status===3||discussMessage.time_status===4?{"maxWidth":"200px"}:{"maxWidth":"272px"}} title={discussMessage.upper_category_name}>{discussMessage.upper_category_name}</span>}
                   </ConditionToolTip>
                 }