diff --git a/blockdag/difficulty.go b/blockdag/difficulty.go
index 229be7e7a..5cf6ac3f8 100644
--- a/blockdag/difficulty.go
+++ b/blockdag/difficulty.go
@@ -15,7 +15,7 @@ import (
 // block given its bluest parent.
 func (dag *BlockDAG) requiredDifficulty(bluestParent *blockNode, newBlockTime mstime.Time) uint32 {
 	// Genesis block.
-	if bluestParent == nil || bluestParent.blueScore < dag.difficultyAdjustmentWindowSize+1 {
+	if dag.Params.DisableDifficultyAdjustment || bluestParent == nil || bluestParent.blueScore < dag.difficultyAdjustmentWindowSize+1 {
 		return dag.powMaxBits
 	}
 
diff --git a/blockdag/difficulty_test.go b/blockdag/difficulty_test.go
index de016f18c..9080c3cc8 100644
--- a/blockdag/difficulty_test.go
+++ b/blockdag/difficulty_test.go
@@ -80,7 +80,7 @@ func TestCalcWork(t *testing.T) {
 }
 
 func TestDifficulty(t *testing.T) {
-	params := dagconfig.SimnetParams
+	params := dagconfig.MainnetParams
 	params.K = 1
 	params.DifficultyAdjustmentWindowSize = 264
 	dag, teardownFunc, err := DAGSetup("TestDifficulty", true, Config{
diff --git a/dagconfig/params.go b/dagconfig/params.go
index 2af6e9aa5..a6a101d0e 100644
--- a/dagconfig/params.go
+++ b/dagconfig/params.go
@@ -178,6 +178,9 @@ type Params struct {
 
 	// EnableNonNativeSubnetworks enables non-native/coinbase transactions
 	EnableNonNativeSubnetworks bool
+
+	// DisableDifficultyAdjustment determine whether to use difficulty
+	DisableDifficultyAdjustment bool
 }
 
 // NormalizeRPCServerAddress returns addr with the current network default
@@ -235,6 +238,8 @@ var MainnetParams = Params{
 
 	// EnableNonNativeSubnetworks enables non-native/coinbase transactions
 	EnableNonNativeSubnetworks: false,
+
+	DisableDifficultyAdjustment: false,
 }
 
 // RegressionNetParams defines the network parameters for the regression test
@@ -288,6 +293,8 @@ var RegressionNetParams = Params{
 
 	// EnableNonNativeSubnetworks enables non-native/coinbase transactions
 	EnableNonNativeSubnetworks: false,
+
+	DisableDifficultyAdjustment: false,
 }
 
 // TestnetParams defines the network parameters for the test Kaspa network.
@@ -339,6 +346,8 @@ var TestnetParams = Params{
 
 	// EnableNonNativeSubnetworks enables non-native/coinbase transactions
 	EnableNonNativeSubnetworks: false,
+
+	DisableDifficultyAdjustment: false,
 }
 
 // SimnetParams defines the network parameters for the simulation test Kaspa
@@ -394,6 +403,8 @@ var SimnetParams = Params{
 
 	// EnableNonNativeSubnetworks enables non-native/coinbase transactions
 	EnableNonNativeSubnetworks: false,
+
+	DisableDifficultyAdjustment: true,
 }
 
 // DevnetParams defines the network parameters for the development Kaspa network.
@@ -445,6 +456,8 @@ var DevnetParams = Params{
 
 	// EnableNonNativeSubnetworks enables non-native/coinbase transactions
 	EnableNonNativeSubnetworks: false,
+
+	DisableDifficultyAdjustment: false,
 }
 
 var (