diff --git a/frontend/src/views/eval/DimensionCreateView.vue b/frontend/src/views/eval/DimensionCreateView.vue
index 1890b4c..8de5b53 100644
--- a/frontend/src/views/eval/DimensionCreateView.vue
+++ b/frontend/src/views/eval/DimensionCreateView.vue
@@ -22,7 +22,7 @@ const editId = computed(() => route.params.id as string | undefined)
 
 const evalModels = ref<ModelItem[]>([])
 
-const form = reactive<DimensionFormDraft>({
+const form = reactive<DimensionFormDraft & { name: string }>({
   name: '',
   type: '',
   description: '',
@@ -140,6 +140,9 @@ onMounted(() => {
 <template>
   <PageCard :title="isEdit ? '编辑评测维度' : '添加评测维度'">
     <el-form ref="formRef" :model="form" :rules="rules" label-width="130px" style="max-width: 760px">
+      <el-form-item label="维度名称" prop="name">
+        <el-input v-model="form.name" placeholder="请输入维度名称" maxlength="50" show-word-limit />
+      </el-form-item>
       <DimensionFormFields v-model="form" :eval-models="evalModels" />
 
       <el-form-item>
diff --git a/frontend/src/views/eval/EvalCreateView.vue b/frontend/src/views/eval/EvalCreateView.vue
index cb11a08..216fd70 100644
--- a/frontend/src/views/eval/EvalCreateView.vue
+++ b/frontend/src/views/eval/EvalCreateView.vue
@@ -36,10 +36,9 @@ const taskForm = ref<EvalTaskSetupDraft>({
 })
 
 const ruleForm = ref<EvalRuleSetupDraft>({
-  ruleMode: 'existing',
+  ruleMode: 'new',
   dimension_id: '',
   newDimension: {
-    name: '',
     type: '',
     description: '',
     eval_model: '',
@@ -95,7 +94,7 @@ async function loadData() {
 function buildDimensionPayload() {
   const draft = ruleForm.value.newDimension
   const payload: Partial<Dimension> = {
-    name: draft.name,
+    name: `Custom_Dim_${Date.now()}`,
     type: draft.type,
     description: draft.description,
     eval_model: draft.type === 'text_similarity' ? undefined : draft.eval_model,
diff --git a/frontend/src/views/eval/create/DimensionFormFields.vue b/frontend/src/views/eval/create/DimensionFormFields.vue
index aecc6ba..44f78b6 100644
--- a/frontend/src/views/eval/create/DimensionFormFields.vue
+++ b/frontend/src/views/eval/create/DimensionFormFields.vue
@@ -7,7 +7,6 @@ import { DIMENSION_TYPE_MAP } from '@/constants'
 import type { DimensionType, ModelItem } from '@/types'
 
 export interface DimensionFormDraft {
-  name: string
   type: DimensionType | ''
   description: string
   eval_model: string
@@ -61,10 +60,6 @@ watch(
 </script>
 
 <template>
-  <el-form-item label="维度名称" prop="name">
-    <el-input v-model="form.name" placeholder="请输入维度名称" maxlength="50" show-word-limit />
-  </el-form-item>
-
   <el-form-item label="指标类型" prop="type">
     <el-select v-model="form.type" placeholder="请选择指标类型" style="width: 100%">
       <el-option v-for="option in typeOptions" :key="option.value" :label="option.label" :value="option.value" />
diff --git a/frontend/src/views/eval/create/EvalRuleSetupStep.vue b/frontend/src/views/eval/create/EvalRuleSetupStep.vue
index 256aefe..4c5ebc1 100644
--- a/frontend/src/views/eval/create/EvalRuleSetupStep.vue
+++ b/frontend/src/views/eval/create/EvalRuleSetupStep.vue
@@ -28,10 +28,6 @@ const existingRules: FormRules = {
 }
 
 const dimensionRules: FormRules<DimensionFormDraft> = {
-  name: [
-    { required: true, message: '请输入维度名称', trigger: 'blur' },
-    { max: 50, message: '维度名称不超过 50 个字符', trigger: 'blur' },
-  ],
   type: [{ required: true, message: '请选择指标类型', trigger: 'change' }],
   eval_model: [{ required: true, message: '请选择大模型', trigger: 'change' }],
   eval_method: [{ required: true, message: '请选择评估方式', trigger: 'change' }],
@@ -43,12 +39,11 @@ const selectedDimension = computed(() =>
 )
 
 async function validate() {
-  if (form.value.ruleMode === 'baseline') return true
-  const target = form.value.ruleMode === 'existing' ? existingFormRef.value : newFormRef.value
+  const target = newFormRef.value
   if (!target) return false
   try {
-    await target.validate()
-    return true
+    const valid = await target.validate()
+    return !!valid
   } catch {
     return false
   }
@@ -59,91 +54,22 @@ defineExpose({ validate })
 
 <template>
   <div class="rule-step">
-    <div class="rule-mode-label">评测规则来源</div>
-    <el-radio-group v-model="form.ruleMode" :disabled="disabled" class="rule-mode-group">
-      <el-radio-button value="existing">选择已有维度</el-radio-button>
-      <el-radio-button value="new">新建评测维度</el-radio-button>
-      <el-radio-button value="baseline">系统基线规则</el-radio-button>
-    </el-radio-group>
-
     <el-form
-      v-if="form.ruleMode === 'existing'"
-      ref="existingFormRef"
-      :model="form"
-      :rules="existingRules"
-      label-width="120px"
-      class="step-form"
-      :disabled="disabled"
-    >
-      <el-form-item label="评测维度" prop="dimension_id">
-        <el-select
-          v-model="form.dimension_id"
-          placeholder="请选择评测维度"
-          filterable
-          style="width: 100%"
-          :loading="loading"
-        >
-          <el-option
-            v-for="dimension in dimensions"
-            :key="dimension.id"
-            :label="dimension.name"
-            :value="dimension.id"
-          />
-        </el-select>
-      </el-form-item>
-
-      <el-form-item v-if="selectedDimension" label="维度详情">
-        <el-descriptions :column="1" border size="small" style="width: 100%">
-          <el-descriptions-item label="指标类型">{{ selectedDimension.type || '-' }}</el-descriptions-item>
-          <el-descriptions-item label="评估模型">{{ selectedDimension.eval_model || '-' }}</el-descriptions-item>
-          <el-descriptions-item label="评估方法">
-            {{
-              Array.isArray(selectedDimension.eval_method)
-                ? selectedDimension.eval_method.join('、')
-                : selectedDimension.eval_method || '-'
-            }}
-          </el-descriptions-item>
-          <el-descriptions-item v-if="selectedDimension.description" label="说明">
-            {{ selectedDimension.description }}
-          </el-descriptions-item>
-        </el-descriptions>
-      </el-form-item>
-    </el-form>
-
-    <el-form
-      v-else-if="form.ruleMode === 'new'"
       ref="newFormRef"
       :model="form.newDimension"
       :rules="dimensionRules"
       label-width="130px"
       class="step-form step-form-wide"
       :disabled="disabled"
+      scroll-to-error
     >
       <DimensionFormFields v-model="form.newDimension" :eval-models="evalModels" />
     </el-form>
-
-    <el-alert
-      v-else
-      title="系统将使用内置基线规则进行评测，无需额外创建或选择评测维度。"
-      type="info"
-      :closable="false"
-      show-icon
-      class="baseline-alert"
-    />
   </div>
 </template>
 
 <style scoped>
-.rule-mode-label {
-  margin-bottom: 10px;
-  color: #606266;
-  font-size: 14px;
-  font-weight: 500;
-}
 
-.rule-mode-group {
-  margin-bottom: 28px;
-}
 
 .step-form {
   max-width: 760px;
@@ -153,7 +79,5 @@ defineExpose({ validate })
   max-width: 920px;
 }
 
-.baseline-alert {
-  max-width: 760px;
-}
+
 </style>
diff --git a/frontend/src/views/eval/create/EvalTaskSetupStep.vue b/frontend/src/views/eval/create/EvalTaskSetupStep.vue
index 427c297..718191c 100644
--- a/frontend/src/views/eval/create/EvalTaskSetupStep.vue
+++ b/frontend/src/views/eval/create/EvalTaskSetupStep.vue
@@ -57,8 +57,8 @@ watch(
 async function validate() {
   if (!formRef.value) return false
   try {
-    await formRef.value.validate()
-    return true
+    const valid = await formRef.value.validate()
+    return !!valid
   } catch {
     return false
   }
@@ -75,6 +75,7 @@ defineExpose({ validate })
     label-width="120px"
     class="step-form"
     :disabled="disabled"
+    scroll-to-error
   >
     <el-form-item label="任务名称" prop="eval_task_name">
       <el-input v-model="form.eval_task_name" placeholder="请输入任务名称" maxlength="50" show-word-limit />