diff --git a/dbm-ui/frontend/src/views/db-manage/redis/apply/ApplyRedis.vue b/dbm-ui/frontend/src/views/db-manage/redis/apply/ApplyRedis.vue
index 0acd4fff2d..b06f4a0dbe 100644
--- a/dbm-ui/frontend/src/views/db-manage/redis/apply/ApplyRedis.vue
+++ b/dbm-ui/frontend/src/views/db-manage/redis/apply/ApplyRedis.vue
@@ -629,11 +629,16 @@
   };
 
   const handleChangeClusterType = () => {
+    const count = [ClusterTypes.PREDIXY_TENDISPLUS_CLUSTER, ClusterTypes.PREDIXY_REDIS_CLUSTER].includes(
+      state.formdata.details.cluster_type,
+    )
+      ? 3
+      : 1;
     state.formdata.details.db_version = '';
     state.formdata.details.resource_spec.proxy.spec_id = '';
     state.formdata.details.resource_spec.backend_group = {
       ...state.formdata.details.resource_spec.backend_group,
-      count: 1,
+      count,
       spec_id: '',
       capacity: '',
       future_capacity: '',
diff --git a/dbm-ui/frontend/src/views/db-manage/redis/apply/components/backend-spec/Index.vue b/dbm-ui/frontend/src/views/db-manage/redis/apply/components/backend-spec/Index.vue
index 294ea6294d..9877b77e58 100644
--- a/dbm-ui/frontend/src/views/db-manage/redis/apply/components/backend-spec/Index.vue
+++ b/dbm-ui/frontend/src/views/db-manage/redis/apply/components/backend-spec/Index.vue
@@ -110,9 +110,9 @@
   const specs = shallowRef<ClusterSpecModel[]>([]);
   const countMap = shallowRef({} as Record<number, number>)
 
-  const isTendisCache = computed(() => props.clusterType === ClusterTypes.TWEMPROXY_REDIS_INSTANCE);
-  const targetCapacityTitle = computed(() => (isTendisCache.value ? t('集群容量需求(内存容量)') : t('集群容量需求(磁盘容量)')));
-  const futureCapacityTitle = computed(() => (isTendisCache.value ? t('未来集群容量需求(内存容量)') : t('未来集群容量需求(磁盘容量)')));
+  const isMemoryType = computed(() => [ClusterTypes.TWEMPROXY_REDIS_INSTANCE, ClusterTypes.PREDIXY_REDIS_CLUSTER].includes(props.clusterType as ClusterTypes));
+  const targetCapacityTitle = computed(() => (isMemoryType.value ? t('集群容量需求(内存容量)') : t('集群容量需求(磁盘容量)')));
+  const futureCapacityTitle = computed(() => (isMemoryType.value ? t('未来集群容量需求(内存容量)') : t('未来集群容量需求(磁盘容量)')));
 
   const columns = [
     {
diff --git a/dbm-ui/frontend/src/views/db-manage/redis/apply/components/backend-spec/components/CustomSchema.vue b/dbm-ui/frontend/src/views/db-manage/redis/apply/components/backend-spec/components/CustomSchema.vue
index dbf85f3450..1f5426195e 100644
--- a/dbm-ui/frontend/src/views/db-manage/redis/apply/components/backend-spec/components/CustomSchema.vue
+++ b/dbm-ui/frontend/src/views/db-manage/redis/apply/components/backend-spec/components/CustomSchema.vue
@@ -20,7 +20,7 @@
       <BkInput
         v-model="modelValue.count"
         clearable
-        :min="1"
+        :min="countMin"
         show-clear-only-hover
         style="width: 314px"
         type="number" />
@@ -103,6 +103,16 @@
   const specSelectorRef = ref<ComponentExposed<typeof SpecSelector>>();
   const shardNum = ref(1);
 
+  const countMin = computed(() => {
+    if (
+      [ClusterTypes.PREDIXY_TENDISPLUS_CLUSTER, ClusterTypes.PREDIXY_REDIS_CLUSTER].includes(
+        props.clusterType as ClusterTypes,
+      )
+    ) {
+      return 3;
+    }
+    return 1;
+  });
   const clusterShardNum = computed(() => modelValue.value.count * shardNum.value || '');
 
   const totalCapcity = computed(() => {
diff --git a/dbm-ui/frontend/src/views/db-manage/redis/common/cluster-deploy-plan/Index.vue b/dbm-ui/frontend/src/views/db-manage/redis/common/cluster-deploy-plan/Index.vue
index 2f672bb5b3..c4b0e05c91 100644
--- a/dbm-ui/frontend/src/views/db-manage/redis/common/cluster-deploy-plan/Index.vue
+++ b/dbm-ui/frontend/src/views/db-manage/redis/common/cluster-deploy-plan/Index.vue
@@ -307,9 +307,9 @@
     }
     return true
   });
-  const isTendisCache = computed(() => props.data.clusterType === ClusterTypes.TWEMPROXY_REDIS_INSTANCE);
-  const targetCapacityTitle = computed(() => (isTendisCache.value ? t('目标集群容量需求(内存容量)') : t('目标集群容量需求(磁盘容量)')));
-  const futureCapacityTitle = computed(() => (isTendisCache.value ? t('未来集群容量需求(内存容量)') : t('未来集群容量需求(磁盘容量)')));
+  const isMemoryType = computed(() => [ClusterTypes.TWEMPROXY_REDIS_INSTANCE, ClusterTypes.PREDIXY_REDIS_CLUSTER].includes(props.data.clusterType));
+  const targetCapacityTitle = computed(() => (isMemoryType.value ? t('目标集群容量需求(内存容量)') : t('目标集群容量需求(磁盘容量)')));
+  const futureCapacityTitle = computed(() => (isMemoryType.value ? t('未来集群容量需求(内存容量)') : t('未来集群容量需求(磁盘容量)')));
 
   const currentSpec = computed(() => {
     if (props?.data) {