diff --git a/params/bootnodes.go b/params/bootnodes.go
index c9a84e8f0490..f02eaec79bb5 100644
--- a/params/bootnodes.go
+++ b/params/bootnodes.go
@@ -19,8 +19,10 @@ package params
 import "github.com/ethereum/go-ethereum/common"
 
 // MainnetBootnodes are the enode URLs of the P2P bootstrap nodes running on
-// the main Ethereum network.
-var MainnetBootnodes = []string{}
+// the main KCC network.
+var MainnetBootnodes = []string{
+	"enode://d16cf20214ae987c0b200252df331633a680866e75fec511ae25573c06585a8ce2d7379526c9ca186501fbcf1af92443a178f7a800049947a178d5a7ba130566@13.230.226.55:30303", // kcc-mainnet-node-boot-01
+}
 
 // TestnetBootnodes are the enode URLs of the P2P bootstrap nodes running on the test network.
 var TestnetBootnodes = []string{
diff --git a/params/config.go b/params/config.go
index 056314870e90..1e5741352455 100644
--- a/params/config.go
+++ b/params/config.go
@@ -27,7 +27,7 @@ import (
 
 // Genesis hashes to enforce below configs on.
 var (
-	MainnetGenesisHash = common.HexToHash("")
+	MainnetGenesisHash = common.HexToHash("0xd179bc170ecd216166ba440a2cff697ba1ed4e203ddcb51214e52773906ca3fc")
 	TestnetGenesisHash = common.HexToHash("0x3e98a8f1704be5accc0ce9abf3e852e24ec030a9dda6c1beaf72c600f85cd417")
 )