diff --git a/rollup/rcfg/config.go b/rollup/rcfg/config.go
new file mode 100644
index 0000000000..54822047ef
--- /dev/null
+++ b/rollup/rcfg/config.go
@@ -0,0 +1,32 @@
+package rcfg
+
+import (
+    "math/big"
+
+    "github.com/scroll-tech/go-ethereum/common"
+)
+
+// TODO:
+// verify in consensus layer when decentralizing sequencer
+
+var (
+    // L2MessageQueueAddress is the address of the L2MessageQueue
+    // predeploy
+    // see contracts/src/L2/predeploys/L2MessageQueue.sol
+    L2MessageQueueAddress = common.HexToAddress("0x5300000000000000000000000000000000000000")
+    WithdrawTrieRootSlot  = common.BigToHash(big.NewInt(0))
+
+    // ScrollFeeVaultAddress is the address of the L2TxFeeVault
+    // predeploy
+    // see scroll-tech/scroll/contracts/src/L2/predeploys/L2TxFeeVault.sol
+    ScrollFeeVaultAddress = common.HexToAddress("0x5300000000000000000000000000000000000005")
+
+    // L1GasPriceOracleAddress is the address of the L1GasPriceOracle
+    // predeploy
+    // see scroll-tech/scroll/contracts/src/L2/predeploys/L1GasPriceOracle.sol
+    L1GasPriceOracleAddress = common.HexToAddress("0x5300000000000000000000000000000000000002")
+    Precision               = new(big.Int).SetUint64(1e9)
+    L1BaseFeeSlot           = common.BigToHash(big.NewInt(1))
+    OverheadSlot            = common.BigToHash(big.NewInt(2))
+    ScalarSlot              = common.BigToHash(big.NewInt(3))
+)