diff --git a/src/common/config/metadata/metadatalist.go b/src/common/config/metadata/metadatalist.go
index 694cb1ae1..7e0ae941f 100644
--- a/src/common/config/metadata/metadatalist.go
+++ b/src/common/config/metadata/metadatalist.go
@@ -151,6 +151,7 @@ var (
 		{Name: common.WithNotary, Scope: SystemScope, Group: BasicGroup, EnvKey: "WITH_NOTARY", DefaultValue: "false", ItemType: &BoolType{}, Editable: true},
 		// the unit of expiration is minute, 43200 minutes = 30 days
 		{Name: common.RobotTokenDuration, Scope: UserScope, Group: BasicGroup, EnvKey: "ROBOT_TOKEN_DURATION", DefaultValue: "43200", ItemType: &IntType{}, Editable: true},
+		{Name: common.RobotNamePrefix, Scope: UserScope, Group: BasicGroup, EnvKey: "ROBOT_NAME_PREFIX", DefaultValue: "robot$", ItemType: &StringType{}, Editable: true},
 		{Name: common.NotificationEnable, Scope: UserScope, Group: BasicGroup, EnvKey: "NOTIFICATION_ENABLE", DefaultValue: "true", ItemType: &BoolType{}, Editable: true},
 
 		{Name: common.QuotaPerProjectEnable, Scope: UserScope, Group: QuotaGroup, EnvKey: "QUOTA_PER_PROJECT_ENABLE", DefaultValue: "true", ItemType: &BoolType{}, Editable: true},
diff --git a/src/common/const.go b/src/common/const.go
index 47b17ba8d..7181f45d1 100755
--- a/src/common/const.go
+++ b/src/common/const.go
@@ -136,6 +136,8 @@ const (
 	DefaultRegistryCtlURL             = "http://registryctl:8080"
 	// Use this prefix to distinguish harbor user, the prefix contains a special character($), so it cannot be registered as a harbor user.
 	RobotPrefix = "robot$"
+	// System admin defined the robot name prefix.
+	RobotNamePrefix = "robot_name_prefix"
 	// Use this prefix to index user who tries to login with web hook token.
 	AuthProxyUserNamePrefix = "tokenreview$"
 	CoreConfigPath          = "/api/internal/configurations"
diff --git a/src/common/utils/test/config.go b/src/common/utils/test/config.go
index 294d119a1..42f9bd207 100644
--- a/src/common/utils/test/config.go
+++ b/src/common/utils/test/config.go
@@ -64,6 +64,7 @@ var defaultConfig = map[string]interface{}{
 	common.JobServiceURL:              "http://myjob:8888/",
 	common.ReadOnly:                   false,
 	common.NotaryURL:                  "http://notary-server:4443",
+	common.RobotNamePrefix:            "robot$",
 }
 
 // GetDefaultConfigMap returns the defailt config map for easier modification.
diff --git a/src/common/utils/test/test.go b/src/common/utils/test/test.go
index 950475cc0..4519235d9 100644
--- a/src/common/utils/test/test.go
+++ b/src/common/utils/test/test.go
@@ -128,6 +128,7 @@ func GetUnitTestConfig() map[string]interface{} {
 		common.TokenServiceURL:        "http://core:8080/service/token",
 		common.RegistryURL:            fmt.Sprintf("http://%s:5000", ipAddress),
 		common.ReadOnly:               false,
+		common.RobotNamePrefix:        "robot$",
 	}
 }
 
diff --git a/src/core/config/config.go b/src/core/config/config.go
index 6cdc8c53e..1ad9f0b20 100755
--- a/src/core/config/config.go
+++ b/src/core/config/config.go
@@ -487,3 +487,8 @@ func GetGCTimeWindow() int64 {
 	}
 	return common.DefaultGCTimeWindowHours
 }
+
+// RobotPrefix user defined robot name prefix.
+func RobotPrefix() string {
+	return cfgMgr.Get(common.RobotNamePrefix).GetString()
+}
diff --git a/src/core/config/config_test.go b/src/core/config/config_test.go
index 4521cdec0..e3f138cf2 100644
--- a/src/core/config/config_test.go
+++ b/src/core/config/config_test.go
@@ -190,6 +190,7 @@ func TestConfig(t *testing.T) {
 
 	assert.True(NotificationEnable())
 	assert.Equal(int64(0), GetGCTimeWindow())
+	assert.Equal("robot$", RobotPrefix())
 
 }