diff --git a/database/gdb/gdb_model_soft_time.go b/database/gdb/gdb_model_soft_time.go
index aa6d50fea05..73e155275c8 100644
--- a/database/gdb/gdb_model_soft_time.go
+++ b/database/gdb/gdb_model_soft_time.go
@@ -183,7 +183,7 @@ func (m *softTimeMaintainer) GetFieldNameAndTypeForDelete(
 	)
 }
 
-// getSoftFieldName retrieves and returns the field name of the table for possible key.
+// getSoftFieldNameAndType retrieves and returns the field name of the table for possible key.
 func (m *softTimeMaintainer) getSoftFieldNameAndType(
 	ctx context.Context,
 	schema string, table string, checkFiledNames []string,
diff --git a/encoding/gjson/gjson_api_encoding.go b/encoding/gjson/gjson_api_encoding.go
index 7f08f0cccbd..23a0ae86fcd 100644
--- a/encoding/gjson/gjson_api_encoding.go
+++ b/encoding/gjson/gjson_api_encoding.go
@@ -207,7 +207,7 @@ func (j *Json) ToProperties() ([]byte, error) {
 	return gproperties.Encode(j.Map())
 }
 
-// TopropertiesString properties to string
+// ToPropertiesString properties to string
 func (j *Json) ToPropertiesString() (string, error) {
 	b, e := j.ToProperties()
 	return string(b), e
@@ -221,7 +221,7 @@ func (j *Json) MustToProperties() []byte {
 	return result
 }
 
-// MustTopropertiesString
+// MustToPropertiesString
 func (j *Json) MustToPropertiesString() string {
 	return string(j.MustToProperties())
 }
diff --git a/util/grand/grand_buffer.go b/util/grand/grand_buffer.go
index 4527c25a20b..4f527babc3b 100644
--- a/util/grand/grand_buffer.go
+++ b/util/grand/grand_buffer.go
@@ -28,7 +28,7 @@ func init() {
 	go asyncProducingRandomBufferBytesLoop()
 }
 
-// asyncProducingRandomBufferBytes is a named goroutine, which uses an asynchronous goroutine
+// asyncProducingRandomBufferBytesLoop is a named goroutine, which uses an asynchronous goroutine
 // to produce the random bytes, and a buffer chan to store the random bytes.
 // So it has high performance to generate random numbers.
 func asyncProducingRandomBufferBytesLoop() {