diff --git a/be/src/runtime/workload_group/workload_group.cpp b/be/src/runtime/workload_group/workload_group.cpp
index 1f43fc2e29..5ddd91d0e8 100644
--- a/be/src/runtime/workload_group/workload_group.cpp
+++ b/be/src/runtime/workload_group/workload_group.cpp
@@ -47,7 +47,6 @@ namespace doris {
 
 const static std::string MEMORY_LIMIT_DEFAULT_VALUE = "0%";
 const static bool ENABLE_MEMORY_OVERCOMMIT_DEFAULT_VALUE = true;
-const static int CPU_HARD_LIMIT_DEFAULT_VALUE = -1;
 const static int SPILL_LOW_WATERMARK_DEFAULT_VALUE = 50;
 const static int SPILL_HIGH_WATERMARK_DEFAULT_VALUE = 80;
 
@@ -331,7 +330,12 @@ Status WorkloadGroupInfo::parse_topic_info(const TWorkloadGroupInfo& tworkload_g
     workload_group_info->cpu_share = cpu_share;
 
     // 5 cpu hard limit
-    int cpu_hard_limit = CPU_HARD_LIMIT_DEFAULT_VALUE;
+    // cgroup v1 and v2 has different default cpu quota value,
+    // v1's default value is -1,
+    // v2's default value is 'max 100000',
+    // it's hard to unify them, so set -1 here means it's an invalid value,
+    // it could be replaced to default value when write value to cpu file, refer modify_cg_cpu_hard_limit_no_lock.
+    int cpu_hard_limit = -1;
     if (tworkload_group_info.__isset.cpu_hard_limit && tworkload_group_info.cpu_hard_limit > 0) {
         cpu_hard_limit = tworkload_group_info.cpu_hard_limit;
     }
diff --git a/fe/fe-common/src/main/java/org/apache/doris/common/Config.java b/fe/fe-common/src/main/java/org/apache/doris/common/Config.java
index fe97f368cb..4b2711bcc9 100644
--- a/fe/fe-common/src/main/java/org/apache/doris/common/Config.java
+++ b/fe/fe-common/src/main/java/org/apache/doris/common/Config.java
@@ -1878,6 +1878,9 @@ public class Config extends ConfigBase {
     @ConfField(mutable = true, varType = VariableAnnotation.EXPERIMENTAL)
     public static boolean enable_workload_group = true;
 
+    @ConfField(mutable = true, varType = VariableAnnotation.EXPERIMENTAL)
+    public static boolean enable_wg_memory_sum_limit = true;
+
     @ConfField(mutable = true)
     public static boolean enable_query_queue = true;
 
diff --git a/fe/fe-core/src/main/java/org/apache/doris/resource/workloadgroup/WorkloadGroupMgr.java b/fe/fe-core/src/main/java/org/apache/doris/resource/workloadgroup/WorkloadGroupMgr.java
index 5ad50daeb7..31b9cefaa6 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/resource/workloadgroup/WorkloadGroupMgr.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/resource/workloadgroup/WorkloadGroupMgr.java
@@ -409,7 +409,7 @@ public class WorkloadGroupMgr extends MasterDaemon implements Writable, GsonPost
             sumOfAllMemLimit += newWg.getMemoryLimitPercentWhenCalSum();
 
             // 3 check total sum
-            if (sumOfAllMemLimit > 100.0 + 1e-6) {
+            if (Config.enable_wg_memory_sum_limit && sumOfAllMemLimit > 100.0 + 1e-6) {
                 throw new DdlException(
                         "The sum of all workload group " + WorkloadGroup.MEMORY_LIMIT + " within tag " + (
                                 newWgTag.isPresent() ? newWgTag.get() : "")