diff --git a/api/grpcserver_integrity_test.go b/api/grpcserver_integrity_test.go
index 2d594c4ef0..95172b791c 100644
--- a/api/grpcserver_integrity_test.go
+++ b/api/grpcserver_integrity_test.go
@@ -98,7 +98,7 @@ var (
 		big.NewInt(testutil.TestGasPriceInt64))
 	_testTransferInvalid6Pb = _testTransferInvalid6.Proto()
 
-	// negative transfer amout
+	// negative transfer amount
 	_testTransferInvalid7, _ = action.SignedTransfer(identityset.Address(28).String(),
 		identityset.PrivateKey(28), 3, big.NewInt(-10), []byte{}, 10000,
 		big.NewInt(testutil.TestGasPriceInt64))
@@ -2634,7 +2634,7 @@ func TestGrpcServer_TraceTransactionStructLogsIntegrity(t *testing.T) {
 	_, err = grpcHandler.TraceTransactionStructLogs(context.Background(), request)
 	require.Error(err)
 
-	//unsupport type
+	// unsupported type
 	request.ActionHash = hex.EncodeToString(_transferHash1[:])
 	_, err = grpcHandler.TraceTransactionStructLogs(context.Background(), request)
 	require.Error(err)
diff --git a/pkg/lifecycle/lifecycle.go b/pkg/lifecycle/lifecycle.go
index 9db1350cd9..f1301cae71 100644
--- a/pkg/lifecycle/lifecycle.go
+++ b/pkg/lifecycle/lifecycle.go
@@ -46,7 +46,7 @@ func (lc *Lifecycle) Add(m Model) { lc.models = append(lc.models, m) }
 // AddModels adds multiple models into LifeCycle.
 func (lc *Lifecycle) AddModels(m ...Model) { lc.models = append(lc.models, m...) }
 
-// OnStart runs models OnStart function if models implmented it. All OnStart functions will be run in parallel.
+// OnStart runs models OnStart function if models implemented it. All OnStart functions will be run in parallel.
 // context passed into models' OnStart method will be canceled on the first time a model's OnStart function return non-nil error.
 func (lc *Lifecycle) OnStart(ctx context.Context) error {
 	g, ctx := errgroup.WithContext(ctx)
@@ -58,7 +58,7 @@ func (lc *Lifecycle) OnStart(ctx context.Context) error {
 	return g.Wait()
 }
 
-// OnStop runs models Stop function if models implmented it. All OnStop functions will be run in parallel.
+// OnStop runs models Stop function if models implemented it. All OnStop functions will be run in parallel.
 // context passed into models' OnStop method will be canceled on the first time a model's OnStop function return non-nil error.
 func (lc *Lifecycle) OnStop(ctx context.Context) error {
 	g, ctx := errgroup.WithContext(ctx)
@@ -70,7 +70,7 @@ func (lc *Lifecycle) OnStop(ctx context.Context) error {
 	return g.Wait()
 }
 
-// OnStartSequentially runs models' Start function if models implmented it.
+// OnStartSequentially runs models' Start function if models implemented it.
 func (lc *Lifecycle) OnStartSequentially(ctx context.Context) error {
 	for _, m := range lc.models {
 		if starter, ok := m.(Starter); ok {
@@ -82,7 +82,7 @@ func (lc *Lifecycle) OnStartSequentially(ctx context.Context) error {
 	return nil
 }
 
-// OnStopSequentially runs models' Stop function if models implmented it.
+// OnStopSequentially runs models' Stop function if models implemented it.
 func (lc *Lifecycle) OnStopSequentially(ctx context.Context) error {
 	for i := len(lc.models) - 1; i >= 0; i-- {
 		if stopper, ok := lc.models[i].(Stopper); ok {
diff --git a/pkg/recovery/recovery.go b/pkg/recovery/recovery.go
index 8afbba2967..4ff0a6babe 100644
--- a/pkg/recovery/recovery.go
+++ b/pkg/recovery/recovery.go
@@ -47,7 +47,7 @@ type (
 // _crashlogDir saves the directory of crashlog
 var _crashlogDir string = "/"
 
-// Recover catchs the crashing goroutine
+// Recover catches the crashing goroutine
 func Recover() {
 	if r := recover(); r != nil {
 		LogCrash(r)