diff --git a/src/views/modules/erf/components/expRawMaterialList.vue b/src/views/modules/erf/components/expRawMaterialList.vue
index a339bd1..1b2c04f 100644
--- a/src/views/modules/erf/components/expRawMaterialList.vue
+++ b/src/views/modules/erf/components/expRawMaterialList.vue
@@ -55,6 +55,7 @@
     <!-- 数据表格 -->
     <el-table
       ref="rawMaterialTable"
+      :key="`raw-material-${applyNo || 'empty'}-${canEdit ? 'edit' : 'view'}`"
       :data="rawMaterialList"
       v-loading="tableLoading"
       border
@@ -463,6 +464,8 @@ export default {
         this.loadRawMaterialList()
         this.loadChangeLogList()
       } else {
+        this.rawMaterialList = []
+        this.selectedRows = []
         this.changeLogList = []
         this.changeLogDrawerVisible = false
       }
@@ -482,6 +485,8 @@ export default {
       } else {
         this.processOptions = []
       }
+      this.selectedRows = []
+      this.refreshRawMaterialTableLayout()
     }
   },
 
@@ -528,6 +533,7 @@ export default {
         this.tableLoading = false
         if (data && data.code === 0) {
           this.rawMaterialList = data.list || []
+          this.refreshRawMaterialTableLayout()
         } else {
           this.rawMaterialList = []
           this.$message.error(data.msg || '查询原材料清单失败')
@@ -538,6 +544,17 @@ export default {
       })
     },
 
+    /**
+     * 刷新原材料表格布局，避免列结构切换后错位
+     */
+    refreshRawMaterialTableLayout() {
+      this.$nextTick(() => {
+        if (this.$refs.rawMaterialTable && this.$refs.rawMaterialTable.doLayout) {
+          this.$refs.rawMaterialTable.doLayout()
+        }
+      })
+    },
+
     /**
      * 加载原材料修改记录
      */
diff --git a/src/views/modules/erf/expApplyList.vue b/src/views/modules/erf/expApplyList.vue
index af33e01..e39f6b9 100644
--- a/src/views/modules/erf/expApplyList.vue
+++ b/src/views/modules/erf/expApplyList.vue
@@ -1434,6 +1434,15 @@ export default {
           }
         })
       }
+
+      // 切换到原材料清单tab时刷新表格布局，避免表头与内容错位
+      if (tab.name === 'rawMaterial' && this.currentRow.applyNo) {
+        this.$nextTick(() => {
+          if (this.$refs.rawMaterialList && this.$refs.rawMaterialList.refreshRawMaterialTableLayout) {
+            this.$refs.rawMaterialList.refreshRawMaterialTableLayout()
+          }
+        })
+      }
     },
 
     /**