diff --git a/frontend/src/components/business/ms-select/index.tsx b/frontend/src/components/business/ms-select/index.tsx
index d961f8af4d..ec6aeb6de6 100644
--- a/frontend/src/components/business/ms-select/index.tsx
+++ b/frontend/src/components/business/ms-select/index.tsx
@@ -450,7 +450,9 @@ export default defineComponent(
       if (typeof props.optionLabelRender === 'function') {
         return label;
       }
-      const option = remoteOriginOptions.value.find((e) => e[props.labelKey || 'label'] === label);
+      const option = remoteOriginOptions.value.find(
+        (e) => e[props.labelKey || 'label'].toLowerCase() === label?.toLowerCase()
+      );
       return option ? option[props.labelKey || 'label'] : props.optionNotExitsText || t('ms.select.optionsNotExits');
     }
 
diff --git a/frontend/src/hooks/useSelect.ts b/frontend/src/hooks/useSelect.ts
index c9a46c28b5..364dab045d 100644
--- a/frontend/src/hooks/useSelect.ts
+++ b/frontend/src/hooks/useSelect.ts
@@ -36,7 +36,7 @@ export default function useSelect(config: UseSelectOption) {
         const innerViewWidth = selectViewInner.value?.getBoundingClientRect().width;
         let lastWidth = innerViewWidth - 60; // 60px 是“+N”的标签宽度+聚焦输入框的宽度
         const childrenNodes = selectViewInner.value.children;
-        if (maxTagCount.value >= 1 && maxTagCount.value < config.selectVal.value.length) {
+        if (maxTagCount.value >= 1 && maxTagCount.value < config.selectVal.value?.length) {
           return;
         }
         for (let i = 0; i < childrenNodes.length; i++) {
diff --git a/frontend/src/views/setting/organization/project/components/userDrawer.vue b/frontend/src/views/setting/organization/project/components/userDrawer.vue
index 723fe654c9..17b16b414b 100644
--- a/frontend/src/views/setting/organization/project/components/userDrawer.vue
+++ b/frontend/src/views/setting/organization/project/components/userDrawer.vue
@@ -48,7 +48,6 @@
             v-else
             v-model:model-value="record.userRoleList"
             :placeholder="t('system.user.createUserUserGroupPlaceholder')"
-            :options="userGroupOptions"
             :search-keys="['name']"
             :loading="record.selectUserGroupLoading"
             :disabled="record.selectUserGroupLoading"
@@ -60,8 +59,11 @@
             label-key="name"
             class="w-full max-w-[300px]"
             allow-clear
-            multiple
-            at-least-one
+            v-bind="{
+              options: userGroupOptions,
+              multiple: true,
+            }"
+            :at-least-one="true"
             :object-value="true"
             @popup-visible-change="(value) => handleUserGroupChange(value, record)"
           >
diff --git a/frontend/src/views/setting/system/organizationAndProject/components/userDrawer.vue b/frontend/src/views/setting/system/organizationAndProject/components/userDrawer.vue
index 8268aced59..3ecd508579 100644
--- a/frontend/src/views/setting/system/organizationAndProject/components/userDrawer.vue
+++ b/frontend/src/views/setting/system/organizationAndProject/components/userDrawer.vue
@@ -49,7 +49,6 @@
             v-else
             v-model:model-value="record.userRoleList"
             :placeholder="t('system.user.createUserUserGroupPlaceholder')"
-            :options="userGroupOptions"
             :search-keys="['name']"
             :loading="record.selectUserGroupLoading"
             :disabled="record.selectUserGroupLoading"
@@ -61,8 +60,11 @@
             label-key="name"
             class="w-full max-w-[300px]"
             allow-clear
-            multiple
-            at-least-one
+            v-bind="{
+              options: userGroupOptions,
+              multiple: true,
+            }"
+            :at-least-one="true"
             :object-value="true"
             @popup-visible-change="(value) => handleUserGroupChange(value, record)"
           >