diff --git a/internal/utils/numberutils/utils.go b/internal/utils/numberutils/utils.go
index 60394c56..08b1ffbf 100644
--- a/internal/utils/numberutils/utils.go
+++ b/internal/utils/numberutils/utils.go
@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"github.com/iwind/TeaGo/types"
 	"strconv"
+	"strings"
 )
 
 func FormatInt64(value int64) string {
@@ -44,10 +45,16 @@ func Min[T int | int8 | int16 | int32 | int64 | uint | uint8 | uint16 | uint32 |
 	return min
 }
 
-func FloorFloat32(f float32, decimal int) float32 {
+func FloorFloat64(f float64, decimal int) float64 {
 	if decimal <= 0 {
 		return f
 	}
 
-	return types.Float32(fmt.Sprintf("%.2f", f))
+	var s = fmt.Sprintf("%f", f)
+	var index = strings.Index(s, ".")
+	if index < 0 || len(s[index:]) <= decimal+1 {
+		return f
+	}
+
+	return types.Float64(s[:index+decimal+1])
 }
diff --git a/internal/utils/numberutils/utils_test.go b/internal/utils/numberutils/utils_test.go
index 8d2545e6..ee054e91 100644
--- a/internal/utils/numberutils/utils_test.go
+++ b/internal/utils/numberutils/utils_test.go
@@ -24,20 +24,20 @@ func TestMaxFloat32(t *testing.T) {
 	t.Logf("%f", math.MaxFloat32/(1<<100))
 }
 
-func TestFloorFloat32(t *testing.T) {
-	t.Logf("%f", numberutils.FloorFloat32(123.456, -1))
-	t.Logf("%f", numberutils.FloorFloat32(123.456, 0))
-	t.Logf("%f", numberutils.FloorFloat32(123, 2))
-	t.Logf("%f, %f", numberutils.FloorFloat32(123.456, 1), 123.456*10)
-	t.Logf("%f, %f", numberutils.FloorFloat32(123.456, 2), 123.456*10*10)
-	t.Logf("%f, %f", numberutils.FloorFloat32(123.456, 3), 123.456*10*10*10)
-	t.Logf("%f, %f", numberutils.FloorFloat32(123.456, 4), 123.456*10*10*10*10)
-	t.Logf("%f, %f", numberutils.FloorFloat32(123.456789, 4), 123.456789*10*10*10*10)
-	t.Logf("%f", numberutils.FloorFloat32(-123.45678, 2))
+func TestFloorFloat64(t *testing.T) {
+	t.Logf("%f", numberutils.FloorFloat64(123.456, -1))
+	t.Logf("%f", numberutils.FloorFloat64(123.456, 0))
+	t.Logf("%f", numberutils.FloorFloat64(123, 2))
+	t.Logf("%f, %f", numberutils.FloorFloat64(123.456, 1), 123.456*10)
+	t.Logf("%f, %f", numberutils.FloorFloat64(123.456, 2), 123.456*10*10)
+	t.Logf("%f, %f", numberutils.FloorFloat64(123.456, 3), 123.456*10*10*10)
+	t.Logf("%f, %f", numberutils.FloorFloat64(123.456, 4), 123.456*10*10*10*10)
+	t.Logf("%f, %f", numberutils.FloorFloat64(123.456789, 4), 123.456789*10*10*10*10)
+	t.Logf("%f", numberutils.FloorFloat64(-123.45678, 2))
 }
 
-func TestFloorFloat32_Special(t *testing.T) {
-	for _, f := range []float32{17.88, 1.11, 1.23456} {
-		t.Logf("%f", numberutils.FloorFloat32(f, 2))
+func TestFloorFloat64_Special(t *testing.T) {
+	for _, f := range []float64{17.88, 1.11, 1.23456} {
+		t.Logf("%f", numberutils.FloorFloat64(f, 2))
 	}
 }