diff --git a/code/fms/fms-vue/src/views/system/module-management/components/structure-tree/ModuleStructureTree.vue b/code/fms/fms-vue/src/views/system/module-management/components/structure-tree/ModuleStructureTree.vue
index 3d38ba27..eea316f8 100644
--- a/code/fms/fms-vue/src/views/system/module-management/components/structure-tree/ModuleStructureTree.vue
+++ b/code/fms/fms-vue/src/views/system/module-management/components/structure-tree/ModuleStructureTree.vue
@@ -672,6 +672,7 @@ provide('moduleStructureTree', {
 
 <style scoped lang="scss">
 .mst-tree {
+  width: 100%;
   color: var(--fms-text);
   font-size: 12px;
   line-height: 1.5;
diff --git a/code/fms/fms-vue/src/views/system/module-management/components/table-edit/TableEditPanel.vue b/code/fms/fms-vue/src/views/system/module-management/components/table-edit/TableEditPanel.vue
index 34edce10..d5371b8e 100644
--- a/code/fms/fms-vue/src/views/system/module-management/components/table-edit/TableEditPanel.vue
+++ b/code/fms/fms-vue/src/views/system/module-management/components/table-edit/TableEditPanel.vue
@@ -919,6 +919,12 @@ function switchView(mode) {
   flex: 1;
   min-height: 0;
   overflow: auto;
+  /* 结构树外层是 Dropdown→Popover 的 span.popover-trigger（inline-flex，收缩到内容宽度），
+     会导致 .mst-tree 只有内容宽。这里把它撑开成 block，让树填满可用宽度 */
+  :deep(.popover-trigger) {
+    display: block;
+    width: 100%;
+  }
 }
 .mm-fdesign__tree-empty {
   padding: 12px 8px;