diff --git a/encoding/gjson/gjson.go b/encoding/gjson/gjson.go
index f29351bb9..1087422a6 100644
--- a/encoding/gjson/gjson.go
+++ b/encoding/gjson/gjson.go
@@ -86,6 +86,7 @@ func (j *Json) setValue(pattern string, value interface{}, removed bool) error {
 			}
 
 		case []interface{}:
+			// A string key.
 			if !gstr.IsNumeric(array[i]) {
 				if i == length-1 {
 					*pointer = map[string]interface{}{array[i]: value}
@@ -97,23 +98,24 @@ func (j *Json) setValue(pattern string, value interface{}, removed bool) error {
 				}
 				continue
 			}
-
-			valn, err := strconv.Atoi(array[i])
+			// Numeric index.
+			valueNum, err := strconv.Atoi(array[i])
 			if err != nil {
 				return err
 			}
-			// Leaf node.
+
 			if i == length-1 {
-				if len((*pointer).([]interface{})) > valn {
+				// Leaf node.
+				if len((*pointer).([]interface{})) > valueNum {
 					if removed && value == nil {
 						// Deleting element.
 						if pparent == nil {
-							*pointer = append((*pointer).([]interface{})[:valn], (*pointer).([]interface{})[valn+1:]...)
+							*pointer = append((*pointer).([]interface{})[:valueNum], (*pointer).([]interface{})[valueNum+1:]...)
 						} else {
-							j.setPointerWithValue(pparent, array[i-1], append((*pointer).([]interface{})[:valn], (*pointer).([]interface{})[valn+1:]...))
+							j.setPointerWithValue(pparent, array[i-1], append((*pointer).([]interface{})[:valueNum], (*pointer).([]interface{})[valueNum+1:]...))
 						}
 					} else {
-						(*pointer).([]interface{})[valn] = value
+						(*pointer).([]interface{})[valueNum] = value
 					}
 				} else {
 					if removed && value == nil {
@@ -124,19 +126,33 @@ func (j *Json) setValue(pattern string, value interface{}, removed bool) error {
 						j.setPointerWithValue(pointer, array[i], value)
 					} else {
 						// It is not the root node.
-						s := make([]interface{}, valn+1)
+						s := make([]interface{}, valueNum+1)
 						copy(s, (*pointer).([]interface{}))
-						s[valn] = value
+						s[valueNum] = value
 						j.setPointerWithValue(pparent, array[i-1], s)
 					}
 				}
 			} else {
+				// Branch node.
 				if gstr.IsNumeric(array[i+1]) {
 					n, _ := strconv.Atoi(array[i+1])
-					if len((*pointer).([]interface{})) > valn {
-						(*pointer).([]interface{})[valn] = make([]interface{}, n+1)
-						pparent = pointer
-						pointer = &(*pointer).([]interface{})[valn]
+					pSlice := (*pointer).([]interface{})
+					if len(pSlice) > valueNum {
+						item := pSlice[valueNum]
+						if s, ok := item.([]interface{}); ok {
+							for i := 0; i < n-len(s); i++ {
+								s = append(s, nil)
+							}
+							pparent = pointer
+							pointer = &pSlice[valueNum]
+						} else {
+							if removed && value == nil {
+								goto done
+							}
+							var v interface{} = make([]interface{}, n+1)
+							pparent = j.setPointerWithValue(pointer, array[i], v)
+							pointer = &v
+						}
 					} else {
 						if removed && value == nil {
 							goto done
@@ -146,14 +162,26 @@ func (j *Json) setValue(pattern string, value interface{}, removed bool) error {
 						pointer = &v
 					}
 				} else {
-					v := (*pointer).([]interface{})
-					if len(v) > valn {
+					pSlice := (*pointer).([]interface{})
+					if len(pSlice) > valueNum {
 						pparent = pointer
-						pointer = &(*pointer).([]interface{})[valn]
+						pointer = &(*pointer).([]interface{})[valueNum]
 					} else {
-						var v interface{} = make(map[string]interface{})
-						pparent = j.setPointerWithValue(pointer, array[i], v)
-						pointer = &v
+						s := make([]interface{}, valueNum+1)
+						copy(s, pSlice)
+						s[valueNum] = make(map[string]interface{})
+						if pparent != nil {
+							// i > 0
+							j.setPointerWithValue(pparent, array[i-1], s)
+							pparent = pointer
+							pointer = &s[valueNum]
+						} else {
+							// i = 0
+							var v interface{} = s
+							*pointer = v
+							pparent = pointer
+							pointer = &s[valueNum]
+						}
 					}
 				}
 			}
@@ -177,19 +205,24 @@ func (j *Json) setValue(pattern string, value interface{}, removed bool) error {
 					pparent = pointer
 				}
 			} else {
-				var v interface{} = make(map[string]interface{})
+				var v1, v2 interface{}
 				if i == length-1 {
-					v = map[string]interface{}{
+					v1 = map[string]interface{}{
 						array[i]: value,
 					}
+				} else {
+					v1 = map[string]interface{}{
+						array[i]: nil,
+					}
 				}
 				if pparent != nil {
-					pparent = j.setPointerWithValue(pparent, array[i-1], v)
+					pparent = j.setPointerWithValue(pparent, array[i-1], v1)
 				} else {
-					*pointer = v
+					*pointer = v1
 					pparent = pointer
 				}
-				pointer = &v
+				v2 = v1.(map[string]interface{})[array[i]]
+				pointer = &v2
 			}
 		}
 	}
diff --git a/encoding/gjson/gjson_z_unit_basic_test.go b/encoding/gjson/gjson_z_unit_basic_test.go
index 2de9ebf5a..6269c94ff 100644
--- a/encoding/gjson/gjson_z_unit_basic_test.go
+++ b/encoding/gjson/gjson_z_unit_basic_test.go
@@ -419,7 +419,7 @@ func Test_Basic(t *testing.T) {
 		j = gjson.New(`[1,2,3]`)
 		err = j.Remove("0.3")
 		t.Assert(err, nil)
-		t.Assert(len(j.Get("0").([]interface{})), 3)
+		t.Assert(j.Get("0"), 1)
 
 		j = gjson.New(`[1,2,3]`)
 		err = j.Remove("0.a")
diff --git a/encoding/gjson/gjson_z_unit_internal_test.go b/encoding/gjson/gjson_z_unit_internal_test.go
new file mode 100644
index 000000000..1520437a6
--- /dev/null
+++ b/encoding/gjson/gjson_z_unit_internal_test.go
@@ -0,0 +1,17 @@
+// Copyright 2017 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+//
+// This Source Code Form is subject to the terms of the MIT License.
+// If a copy of the MIT was not distributed with this file,
+// You can obtain one at https://github.com/gogf/gf.
+
+package gjson
+
+//func Test_Load_YAML3(t *testing.T) {
+//	data := []byte(`
+//bb           = """
+//                    dig := dig;                         END;"""
+//`)
+//	gtest.C(t, func(t *gtest.T) {
+//		t.Assert(checkDataType(data), "toml")
+//	})
+//}
diff --git a/encoding/gjson/gjson_z_unit_set_test.go b/encoding/gjson/gjson_z_unit_set_test.go
index 2ed5eae15..353a0e214 100644
--- a/encoding/gjson/gjson_z_unit_set_test.go
+++ b/encoding/gjson/gjson_z_unit_set_test.go
@@ -8,6 +8,9 @@ package gjson_test
 
 import (
 	"bytes"
+	"github.com/gogf/gf/frame/g"
+	"github.com/gogf/gf/test/gtest"
+	"github.com/gogf/gf/text/gstr"
 	"testing"
 
 	"github.com/gogf/gf/encoding/gjson"
@@ -31,17 +34,13 @@ func Test_Set1(t *testing.T) {
 }
 
 func Test_Set2(t *testing.T) {
-	e := []byte(`[[null,1]]`)
-	p := gjson.New([]string{"a"})
-	p.Set("0.1", 1)
-	if c, err := p.ToJson(); err == nil {
-
-		if bytes.Compare(c, e) != 0 {
-			t.Error("expect:", string(e))
-		}
-	} else {
-		t.Error(err)
-	}
+	gtest.C(t, func(t *gtest.T) {
+		e := `[[null,1]]`
+		p := gjson.New([]string{"a"})
+		p.Set("0.1", 1)
+		s := p.MustToJsonString()
+		t.Assert(s, e)
+	})
 }
 
 func Test_Set3(t *testing.T) {
@@ -51,7 +50,6 @@ func Test_Set3(t *testing.T) {
 		"k1": "v1",
 	})
 	if c, err := p.ToJson(); err == nil {
-
 		if bytes.Compare(c, e) != 0 {
 			t.Error("expect:", string(e))
 		}
@@ -227,3 +225,107 @@ func Test_Set14(t *testing.T) {
 		t.Error(err)
 	}
 }
+
+func Test_Set15(t *testing.T) {
+	gtest.C(t, func(t *gtest.T) {
+		j := gjson.New(nil)
+
+		t.Assert(j.Set("root.0.k1", "v1"), nil)
+		t.Assert(j.Set("root.1.k2", "v2"), nil)
+		t.Assert(j.Set("k", "v"), nil)
+
+		s, err := j.ToJsonString()
+		t.Assert(err, nil)
+		t.Assert(
+			gstr.Contains(s, `"root":[{"k1":"v1"},{"k2":"v2"}`) ||
+				gstr.Contains(s, `"root":[{"k2":"v2"},{"k1":"v1"}`),
+			true,
+		)
+		t.Assert(
+			gstr.Contains(s, `{"k":"v"`) ||
+				gstr.Contains(s, `"k":"v"}`),
+			true,
+		)
+	})
+}
+
+func Test_Set16(t *testing.T) {
+	gtest.C(t, func(t *gtest.T) {
+		j := gjson.New(nil)
+
+		t.Assert(j.Set("processors.0.set.0value", "1"), nil)
+		t.Assert(j.Set("processors.0.set.0field", "2"), nil)
+		t.Assert(j.Set("description", "3"), nil)
+
+		s, err := j.ToJsonString()
+		t.Assert(err, nil)
+		t.Assert(
+			gstr.Contains(s, `"processors":[{"set":{"0field":"2","0value":"1"}}]`) ||
+				gstr.Contains(s, `"processors":[{"set":{"0value":"1","0field":"2"}}]`),
+			true,
+		)
+		t.Assert(
+			gstr.Contains(s, `{"description":"3"`) || gstr.Contains(s, `"description":"3"}`),
+			true,
+		)
+	})
+}
+
+func Test_Set17(t *testing.T) {
+	gtest.C(t, func(t *gtest.T) {
+		j := gjson.New(nil)
+
+		t.Assert(j.Set("0.k1", "v1"), nil)
+		t.Assert(j.Set("1.k2", "v2"), nil)
+		// overwrite the previous slice.
+		t.Assert(j.Set("k", "v"), nil)
+
+		s, err := j.ToJsonString()
+		t.Assert(err, nil)
+		t.Assert(s, `{"k":"v"}`)
+	})
+}
+
+func Test_Set18(t *testing.T) {
+	gtest.C(t, func(t *gtest.T) {
+		j := gjson.New(nil)
+
+		t.Assert(j.Set("0.1.k1", "v1"), nil)
+		t.Assert(j.Set("0.2.k2", "v2"), nil)
+		s, err := j.ToJsonString()
+		t.Assert(err, nil)
+		t.Assert(s, `[[null,{"k1":"v1"},{"k2":"v2"}]]`)
+	})
+}
+
+func Test_Set19(t *testing.T) {
+	gtest.C(t, func(t *gtest.T) {
+		j := gjson.New(nil)
+
+		t.Assert(j.Set("0.1.1.k1", "v1"), nil)
+		t.Assert(j.Set("0.2.1.k2", "v2"), nil)
+		s, err := j.ToJsonString()
+		t.Assert(err, nil)
+		t.Assert(s, `[[null,[null,{"k1":"v1"}],[null,{"k2":"v2"}]]]`)
+	})
+}
+
+func Test_Set20(t *testing.T) {
+	gtest.C(t, func(t *gtest.T) {
+		j := gjson.New(nil)
+
+		t.Assert(j.Set("k1", "v1"), nil)
+		t.Assert(j.Set("k2", g.Slice{1, 2, 3}), nil)
+		t.Assert(j.Set("k2.1", 20), nil)
+		t.Assert(j.Set("k2.2", g.Map{"k3": "v3"}), nil)
+		s, err := j.ToJsonString()
+		t.Assert(err, nil)
+		t.Assert(gstr.InArray(
+			g.SliceStr{
+				`{"k1":"v1","k2":[1,20,{"k3":"v3"}]}`,
+				`{"k2":[1,20,{"k3":"v3"}],"k1":"v1"}`,
+			},
+			s,
+		), true)
+	})
+}