diff --git a/ci.go b/ci.go
index 2cf1713..6d6e973 100644
--- a/ci.go
+++ b/ci.go
@@ -1,7 +1,10 @@
 package cos
 
 import (
+	"context"
 	"encoding/json"
+	"encoding/xml"
+	"net/http"
 )
 
 type PicOperations struct {
@@ -22,3 +25,50 @@ func EncodePicOperations(pic *PicOperations) string {
 	}
 	return string(bs)
 }
+
+type CloudImageReuslt struct {
+	XMLName       xml.Name          `xml:"UploadResult"`
+	OriginalInfo  *PicOriginalInfo  `xml:"OriginalInfo,omitempty"`
+	ProcessObject *PicProcessObject `xml:"ProcessResults>Object,omitempty"`
+}
+
+type PicOriginalInfo struct {
+	Key       string        `xml:"Key,omitempty"`
+	Location  string        `xml:"Location,omitempty"`
+	ImageInfo *PicImageInfo `xml:"ImageInfo,omitempty"`
+}
+
+type PicImageInfo struct {
+	Format  string `xml:"Format,omitempty"`
+	Width   int    `xml:"Width,omitempty"`
+	Height  int    `xml:"Height,omitempty"`
+	Size    int    `xml:"Size,omitempty"`
+	Quality int    `xml:"Quality,omitempty"`
+}
+
+type PicProcessObject struct {
+	Key      string `xml:"Key,omitempty"`
+	Location string `xml:"Location,omitempty"`
+	Format   string `xml:"Format,omitempty"`
+	Width    int    `xml:"Width,omitempty"`
+	Height   int    `xml:"Height,omitempty"`
+	Size     int    `xml:"Size,omitempty"`
+	Quality  int    `xml:"Quality,omitempty"`
+}
+
+type CloudImageOptions struct {
+	PicOperations string `header:"Pic-Operations" xml:"-" url:"-"`
+}
+
+func (s *ObjectService) PostCI(ctx context.Context, name string, opt *CloudImageOptions) (*CloudImageReuslt, *Response, error) {
+	var res CloudImageReuslt
+	sendOpt := sendOptions{
+		baseURL:   s.client.BaseURL.BucketURL,
+		uri:       "/" + encodeURIComponent(name) + "?image_process",
+		method:    http.MethodPost,
+		optHeader: opt,
+		result:    &res,
+	}
+	resp, err := s.client.send(ctx, &sendOpt)
+	return &res, resp, err
+}
diff --git a/example/object/ci_post.go b/example/object/ci_post.go
new file mode 100644
index 0000000..380db87
--- /dev/null
+++ b/example/object/ci_post.go
@@ -0,0 +1,68 @@
+package main
+
+import (
+	"context"
+	"encoding/xml"
+	"fmt"
+	"net/http"
+	"net/url"
+	"os"
+
+	"github.com/tencentyun/cos-go-sdk-v5"
+	"github.com/tencentyun/cos-go-sdk-v5/debug"
+)
+
+func log_status(err error) {
+	if err == nil {
+		return
+	}
+	if cos.IsNotFoundError(err) {
+		// WARN
+		fmt.Println("WARN: Resource is not existed")
+	} else if e, ok := cos.IsCOSError(err); ok {
+		fmt.Printf("ERROR: Code: %v\n", e.Code)
+		fmt.Printf("ERROR: Message: %v\n", e.Message)
+		fmt.Printf("ERROR: Resource: %v\n", e.Resource)
+		fmt.Printf("ERROR: RequestId: %v\n", e.RequestID)
+		// ERROR
+	} else {
+		fmt.Printf("ERROR: %v\n", err)
+		// ERROR
+	}
+}
+
+func main() {
+	u, _ := url.Parse("https://test-1259654469.cos.ap-guangzhou.myqcloud.com")
+	b := &cos.BaseURL{BucketURL: u}
+	c := cos.NewClient(b, &http.Client{
+		Transport: &cos.AuthorizationTransport{
+			SecretID:  os.Getenv("COS_SECRETID"),
+			SecretKey: os.Getenv("COS_SECRETKEY"),
+			Transport: &debug.DebugRequestTransport{
+				RequestHeader: true,
+				// Notice when put a large file and set need the request body, might happend out of memory error.
+				RequestBody:    false,
+				ResponseHeader: true,
+				ResponseBody:   true,
+			},
+		},
+	})
+
+	pic := &cos.PicOperations{
+		IsPicInfo: 1,
+		Rules: []cos.PicOperationsRules{
+			{
+				FileId: "format.jpg",
+				Rule:   "imageView2/format/png",
+			},
+		},
+	}
+	opt := &cos.CloudImageOptions{
+		PicOperations: cos.EncodePicOperations(pic),
+	}
+	name := "test.jpg"
+	res, _, err := c.Object.PostCI(context.Background(), name, opt)
+	data, _ := xml.Marshal(res)
+	fmt.Printf("%+v\n", string(data))
+	log_status(err)
+}