diff --git a/manager/config/config.go b/manager/config/config.go
index 6e5deda5d..7fc4d41df 100644
--- a/manager/config/config.go
+++ b/manager/config/config.go
@@ -304,10 +304,6 @@ type GRPCTLSServerConfig struct {
 }
 
 type JobConfig struct {
-	// GC configuration, used to clean up expired jobs. If the count of the jobs is huge,
-	// it may cause performance problems.
-	GC GCConfig `yaml:"gc" mapstructure:"gc"`
-
 	// Preheat configuration.
 	Preheat PreheatConfig `yaml:"preheat" mapstructure:"preheat"`
 
@@ -315,17 +311,6 @@ type JobConfig struct {
 	SyncPeers SyncPeersConfig `yaml:"syncPeers" mapstructure:"syncPeers"`
 }
 
-type GCConfig struct {
-	// Interval is the interval for gc.
-	Interval time.Duration `yaml:"interval" mapstructure:"interval"`
-
-	// TTL is the ttl for job.
-	TTL time.Duration `yaml:"ttl" mapstructure:"ttl"`
-
-	// BatchSize is the batch size when operating gorm database.
-	BatchSize int `yaml:"batchSize" mapstructure:"batchSize"`
-}
-
 type PreheatConfig struct {
 	// RegistryTimeout is the timeout for requesting registry to get token and manifest.
 	RegistryTimeout time.Duration `yaml:"registryTimeout" mapstructure:"registryTimeout"`
@@ -444,11 +429,6 @@ func New() *Config {
 			},
 		},
 		Job: JobConfig{
-			GC: GCConfig{
-				Interval:  DefaultJobGCInterval,
-				TTL:       DefaultJobGCTTL,
-				BatchSize: DefaultJobGCBatchSize,
-			},
 			Preheat: PreheatConfig{
 				RegistryTimeout: DefaultJobPreheatRegistryTimeout,
 				TLS:             PreheatTLSClientConfig{},
@@ -625,18 +605,6 @@ func (cfg *Config) Validate() error {
 		return errors.New("local requires parameter ttl")
 	}
 
-	if cfg.Job.GC.Interval == 0 {
-		return errors.New("gc requires parameter interval")
-	}
-
-	if cfg.Job.GC.TTL == 0 {
-		return errors.New("gc requires parameter ttl")
-	}
-
-	if cfg.Job.GC.BatchSize == 0 {
-		return errors.New("gc requires parameter batchSize")
-	}
-
 	if cfg.Job.Preheat.RegistryTimeout == 0 {
 		return errors.New("preheat requires parameter registryTimeout")
 	}
diff --git a/manager/config/config_test.go b/manager/config/config_test.go
index 141f6821f..9d89ad640 100644
--- a/manager/config/config_test.go
+++ b/manager/config/config_test.go
@@ -177,11 +177,6 @@ func TestConfig_Load(t *testing.T) {
 			},
 		},
 		Job: JobConfig{
-			GC: GCConfig{
-				Interval:  1 * time.Second,
-				TTL:       1 * time.Second,
-				BatchSize: 100,
-			},
 			Preheat: PreheatConfig{
 				RegistryTimeout: DefaultJobPreheatRegistryTimeout,
 				TLS: PreheatTLSClientConfig{
@@ -736,51 +731,6 @@ func TestConfig_Validate(t *testing.T) {
 				assert.EqualError(err, "local requires parameter ttl")
 			},
 		},
-		{
-			name:   "gc requires parameter interval",
-			config: New(),
-			mock: func(cfg *Config) {
-				cfg.Auth.JWT = mockJWTConfig
-				cfg.Database.Type = DatabaseTypeMysql
-				cfg.Database.Mysql = mockMysqlConfig
-				cfg.Database.Redis = mockRedisConfig
-				cfg.Job.GC.Interval = 0
-			},
-			expect: func(t *testing.T, err error) {
-				assert := assert.New(t)
-				assert.EqualError(err, "gc requires parameter interval")
-			},
-		},
-		{
-			name:   "gc requires parameter ttl",
-			config: New(),
-			mock: func(cfg *Config) {
-				cfg.Auth.JWT = mockJWTConfig
-				cfg.Database.Type = DatabaseTypeMysql
-				cfg.Database.Mysql = mockMysqlConfig
-				cfg.Database.Redis = mockRedisConfig
-				cfg.Job.GC.TTL = 0
-			},
-			expect: func(t *testing.T, err error) {
-				assert := assert.New(t)
-				assert.EqualError(err, "gc requires parameter ttl")
-			},
-		},
-		{
-			name:   "gc requires parameter batchSize",
-			config: New(),
-			mock: func(cfg *Config) {
-				cfg.Auth.JWT = mockJWTConfig
-				cfg.Database.Type = DatabaseTypeMysql
-				cfg.Database.Mysql = mockMysqlConfig
-				cfg.Database.Redis = mockRedisConfig
-				cfg.Job.GC.BatchSize = 0
-			},
-			expect: func(t *testing.T, err error) {
-				assert := assert.New(t)
-				assert.EqualError(err, "gc requires parameter batchSize")
-			},
-		},
 		{
 			name:   "preheat requires parameter registryTimeout",
 			config: New(),
diff --git a/manager/config/constants.go b/manager/config/constants.go
index 04085ff55..7b334c5d7 100644
--- a/manager/config/constants.go
+++ b/manager/config/constants.go
@@ -87,15 +87,6 @@ const (
 )
 
 const (
-	// DefaultJobGCInterval is the default interval for gc job.
-	DefaultJobGCInterval = 3 * time.Hour
-
-	// DefaultJobGCTTL is the default ttl for job.
-	DefaultJobGCTTL = 6 * time.Hour
-
-	// DefaultJobGCBatchSize is the default batch size for operating on the database in gc job.
-	DefaultJobGCBatchSize = 5000
-
 	// DefaultJobPreheatRegistryTimeout is the default timeout for requesting registry to get token and manifest.
 	DefaultJobPreheatRegistryTimeout = 1 * time.Minute