diff --git a/fixtures/networks/network_parse.go b/fixtures/networks/network_parse.go
index 91914edb6d..370969261b 100644
--- a/fixtures/networks/network_parse.go
+++ b/fixtures/networks/network_parse.go
@@ -5,10 +5,14 @@ import (
 	"strings"
 
 	"github.com/filecoin-project/venus/pkg/config"
+	"github.com/filecoin-project/venus/pkg/constants"
 	"github.com/filecoin-project/venus/venus-shared/types"
 	"github.com/filecoin-project/venus/venus-shared/utils"
+	logging "github.com/ipfs/go-log/v2"
 )
 
+var log = logging.Logger("network-params")
+
 func GetNetworkFromName(name string) (types.NetworkType, error) {
 	if name == "2k" || strings.HasPrefix(name, "localnet-") {
 		return types.Network2k, nil
@@ -43,6 +47,11 @@ func SetConfigFromNetworkType(cfg *config.Config, networkType types.NetworkType)
 	cfg.NetworkParams = &netcfg.Network
 	// not change, expect to adjust the value through the configuration file
 	cfg.NetworkParams.AllowableClockDriftSecs = oldAllowableClockDriftSecs
+
+	if constants.DisableF3 {
+		cfg.NetworkParams.F3Enabled = false
+		log.Warnf("F3 is disabled")
+	}
 	return nil
 }
 
diff --git a/pkg/constants/env.go b/pkg/constants/env.go
index d8dbc08a1e..0d47c7be31 100644
--- a/pkg/constants/env.go
+++ b/pkg/constants/env.go
@@ -13,3 +13,6 @@ var NoSlashFilter = os.Getenv("VENUS_NO_SLASHFILTER") == "_yes_i_know_and_i_acce
 
 // NoMigrationResultCache will not use cached migration results
 var NoMigrationResultCache = os.Getenv("VENUS_NO_MIGRATION_RESULT_CACHE") == "1"
+
+// DisableF3 disable f3
+var DisableF3 = os.Getenv("VENUS_DISABLE_F3") == "1"
diff --git a/venus-shared/api/chain/v1/method.md b/venus-shared/api/chain/v1/method.md
index 4af1712d89..fba81e36c1 100644
--- a/venus-shared/api/chain/v1/method.md
+++ b/venus-shared/api/chain/v1/method.md
@@ -1805,9 +1805,10 @@ Response:
 ```
 
 ### StateGetBeaconEntry
-StateGetBeaconEntry returns the beacon entry for the given filecoin epoch. If
-the entry has not yet been produced, the call will block until the entry
-becomes available
+StateGetBeaconEntry returns the beacon entry for the given filecoin epoch
+by using the recorded entries on the chain. If the entry for the requested
+epoch has not yet been produced, the call will block until the entry
+becomes available.
 
 
 Perms: read