diff --git a/src/views/base/product/type/components/BaseProductTypeEdit.vue b/src/views/base/product/type/components/BaseProductTypeEdit.vue
index 88bebe0..4f88fdb 100644
--- a/src/views/base/product/type/components/BaseProductTypeEdit.vue
+++ b/src/views/base/product/type/components/BaseProductTypeEdit.vue
@@ -660,40 +660,49 @@
       },
       // 规格参数默认选中
       defaultSelected(specIds) {
-        const values = this.flatten(Object.values(this.specForm))
-        const selects = values.filter((item) =>
-          specIds.includes(item.spec_id.toString())
-        )
-        this.selectedSpecs = this.selectSpecs = selects
-        this.type_spec_names = this.selectedSpecs
-          .map((item) => {
-            return item.spec_name
-          })
-          .join(', ')
-        this.form.type_spec_ids = this.selectedSpecs
-          .map((item) => {
-            return item.spec_id
-          })
-          .join(',')
+      // 修复：判断 specForm 是否为有效对象
+      if (!this.specForm || Object.keys(this.specForm).length === 0) {
+        this.selectedSpecs = this.selectSpecs = [];
+        this.type_spec_names = '';
+        this.form.type_spec_ids = '';
+        return;
+      }
 
+      const values = this.flatten(Object.values(this.specForm));
+      const selects = values.filter((item) => 
+        specIds.includes(item.spec_id.toString())
+      );
+
+      this.selectedSpecs = this.selectSpecs = selects;
+      this.type_spec_names = selects.length > 0 
+        ? selects.map(item => item.spec_name).join(', ') 
+        : '';
+      this.form.type_spec_ids = selects.length > 0 
+        ? selects.map(item => item.spec_id).join(',') 
+        : '';
       },
       // 品牌默认选中
       brandDefaultSelected(brandIds) {
-        const values = this.flatten(Object.values(this.brandForm))
-        const selects = values.filter((item) =>
+        // 判断 brandForm 是否为有效对象，避免 Object.values 处理空值
+        if (!this.brandForm || Object.keys(this.brandForm).length === 0) {
+          this.selectedBrands = this.selectBrands = [];
+          this.type_brand_names = '';
+          this.form.type_brand_ids = '';
+          return;
+        }
+        const values = this.flatten(Object.values(this.brandForm));
+        const selects = values.filter((item) => 
           brandIds.includes(item.brand_id.toString())
-        )
-        this.selectedBrands = this.selectBrands = selects
-        this.type_brand_names = this.selectedBrands
-          .map((item) => {
-            return item.brand_name
-          })
-          .join(', ')
-        this.form.type_brand_ids = this.selectedBrands
-          .map((item) => {
-            return item.brand_id
-          })
-          .join(',')
+        );
+
+        this.selectedBrands = this.selectBrands = selects;
+        // 处理无选中品牌的情况，避免 join 空数组导致 ", "
+        this.type_brand_names = selects.length > 0 
+          ? selects.map(item => item.brand_name).join(', ') 
+          : '';
+        this.form.type_brand_ids = selects.length > 0 
+          ? selects.map(item => item.brand_id).join(',') 
+          : '';
       },
       // 扁平化数组方法
       flatten(arr) {