diff --git a/core/genesis.go b/core/genesis.go
index b4a318727a69..42d5ffa8a9ca 100644
--- a/core/genesis.go
+++ b/core/genesis.go
@@ -302,7 +302,10 @@ func SetupGenesisBlockWithOverride(db ethdb.Database, genesis *Genesis, override
 	// chain config as that would be AllProtocolChanges (applying any new fork
 	// on top of an existing private network genesis block). In that case, only
 	// apply the overrides.
-	if genesis == nil && !(stored == params.MainnetGenesisHash || stored == params.WemixMainnetGenesisHash) {
+	if genesis == nil &&
+		!(stored == params.MainnetGenesisHash ||
+			stored == params.WemixMainnetGenesisHash ||
+			stored == params.DevnetGenesisHash) {
 		newcfg = storedcfg
 		if overrideArrowGlacier != nil {
 			newcfg.ArrowGlacierBlock = overrideArrowGlacier
@@ -327,6 +330,8 @@ func SetupGenesisBlockWithOverride(db ethdb.Database, genesis *Genesis, override
 
 func (g *Genesis) configOrDefault(ghash common.Hash) *params.ChainConfig {
 	switch {
+	case ghash == params.DevnetGenesisHash:
+		return params.WemixDevnetChainConfig
 	case ghash == params.WemixMainnetGenesisHash:
 		return params.WemixMainnetChainConfig
 	case ghash == params.WemixTestnetGenesisHash:
diff --git a/params/config.go b/params/config.go
index c86356c663ad..2bfab6860a9e 100644
--- a/params/config.go
+++ b/params/config.go
@@ -35,6 +35,7 @@ var (
 	RinkebyGenesisHash      = common.HexToHash("0x6341fd3daf94b748c72ced5a5b26028f2474f5f00d824504e4fa37a75767e177")
 	GoerliGenesisHash       = common.HexToHash("0xbf7e331f7f7c1dd2e05159666b3bf8bc7a8a3a9eb1d518969eab529dd9b88c1a")
 	KilnGenesisHash         = common.HexToHash("0x51c7fe41be669f69c45c33a56982cbde405313342d9e2b00d7c91a7b284dd4f8")
+	DevnetGenesisHash       = common.HexToHash("0x45ef4029e520fff2763b31821da9bf761ca73f243bb8e912f4d3004ce3598151")
 )
 
 // TrustedCheckpoints associates each known checkpoint with the genesis hash of
@@ -201,6 +202,35 @@ var (
 		},
 	}
 
+	WemixDevnetChainConfig = &ChainConfig{
+		ChainID:             big.NewInt(1113),
+		HomesteadBlock:      big.NewInt(0),
+		DAOForkBlock:        big.NewInt(0),
+		DAOForkSupport:      true,
+		EIP150Block:         big.NewInt(0),
+		EIP155Block:         big.NewInt(0),
+		EIP158Block:         big.NewInt(0),
+		ByzantiumBlock:      big.NewInt(0),
+		ConstantinopleBlock: big.NewInt(0),
+		PetersburgBlock:     big.NewInt(0),
+		IstanbulBlock:       big.NewInt(0),
+		MuirGlacierBlock:    big.NewInt(0),
+		BerlinBlock:         big.NewInt(0),
+		LondonBlock:         big.NewInt(0),
+		PangyoBlock:         big.NewInt(0),
+		ApplepieBlock:       big.NewInt(0),
+		BriocheBlock:        big.NewInt(607_147), // target date: 2024-05-29 16:00:00 (GMT+09)
+		Ethash:              new(EthashConfig),
+		Brioche: &BriocheConfig{
+			BlockReward:       big.NewInt(1e18),
+			FirstHalvingBlock: big.NewInt(607_147),
+			HalvingPeriod:     big.NewInt(63_115_200),
+			FinishRewardBlock: big.NewInt(2_412_358_747), // target date: 2100-11-01 11:00:00 (GMT+09)
+			HalvingTimes:      16,
+			HalvingRate:       50,
+		},
+	}
+
 	// SepoliaChainConfig contains the chain parameters to run a node on the Sepolia test network.
 	SepoliaChainConfig = &ChainConfig{
 		ChainID:             big.NewInt(11155111),