diff --git a/common/constants.go b/common/constants.go
index 480c9ecbba..6b483d9b2c 100644
--- a/common/constants.go
+++ b/common/constants.go
@@ -21,7 +21,7 @@ const (
 )
 
 var TIP2019Block = big.NewInt(1050000)
-var IsTestnet bool = false
+var IsTestnet = false
 var StoreRewardFolder string
 var RollbackHash Hash
 var MinGasPrice int64
diff --git a/consensus/posv/posv.go b/consensus/posv/posv.go
index 2cd8b9ac71..7817cbc7db 100644
--- a/consensus/posv/posv.go
+++ b/consensus/posv/posv.go
@@ -307,6 +307,9 @@ func (c *Posv) verifyHeaderWithCache(chain consensus.ChainReader, header *types.
 // looking those up from the database. This is useful for concurrently verifying
 // a batch of new headers.
 func (c *Posv) verifyHeader(chain consensus.ChainReader, header *types.Header, parents []*types.Header, fullVerify bool) error {
+	if common.IsTestnet {
+		fullVerify = false
+	}
 	if header.Number == nil {
 		return errUnknownBlock
 	}
diff --git a/eth/backend.go b/eth/backend.go
index 2b19db2fbf..99074c8ac0 100644
--- a/eth/backend.go
+++ b/eth/backend.go
@@ -580,6 +580,19 @@ func (s *Ethereum) ValidateMasternode() (bool, error) {
 	} else {
 		return false, fmt.Errorf("Only verify masternode permission in PoSV protocol")
 	}
+	if common.IsTestnet {
+		masternodes := []common.Address{
+			common.HexToAddress("0xfFC679Dcdf444D2eEb0491A998E7902B411CcF20"),
+			common.HexToAddress("0xd76fd76F7101811726DCE9E43C2617706a4c45c8"),
+			common.HexToAddress("0x8A97753311aeAFACfd76a68Cf2e2a9808d3e65E8"),
+		}
+		for _, m := range masternodes {
+			if m == eb {
+				return true, nil
+			}
+		}
+		return false, nil
+	}
 	return true, nil
 }