diff --git a/common/constants.go b/common/constants.go
index a0a88f1255..0571a8cf11 100644
--- a/common/constants.go
+++ b/common/constants.go
@@ -14,4 +14,5 @@ const (
 	LimitPenaltyEpoch          = 4
 	BlocksPerYear              = uint64(15768000)
 	LimitThresholdNonceInQueue = 10
+	MinGasPrice                = 2500
 )
diff --git a/eth/gasprice/gasprice.go b/eth/gasprice/gasprice.go
index 54325692c6..0fe0f3c513 100644
--- a/eth/gasprice/gasprice.go
+++ b/eth/gasprice/gasprice.go
@@ -30,6 +30,7 @@ import (
 )
 
 var maxPrice = big.NewInt(500 * params.Shannon)
+var minPrice = big.NewInt(common.MinGasPrice)
 
 type Config struct {
 	Blocks     int
@@ -140,6 +141,11 @@ func (gpo *Oracle) SuggestPrice(ctx context.Context) (*big.Int, error) {
 		price = new(big.Int).Set(maxPrice)
 	}
 
+	// Check gas price min.
+	if price.Cmp(minPrice) < 0 {
+		price = new(big.Int).Set(minPrice)
+	}
+
 	gpo.cacheLock.Lock()
 	gpo.lastHead = headHash
 	gpo.lastPrice = price