diff --git a/builder/ucloud/uhost/step_copy_image.go b/builder/ucloud/uhost/step_copy_image.go
index 58d73751f..2833a1d4a 100644
--- a/builder/ucloud/uhost/step_copy_image.go
+++ b/builder/ucloud/uhost/step_copy_image.go
@@ -30,7 +30,7 @@ func (s *stepCopyUCloudImage) Run(ctx context.Context, state multistep.StateBag)
 	srcImageId := state.Get("image_id").(string)
 	artifactImages := state.Get("ucloud_images").(*imageInfoSet)
 	expectedImages := newImageInfoSet(nil)
-	ui.Say(fmt.Sprintf("Copying image with %q...", srcImageId))
+	ui.Say(fmt.Sprintf("Copying images form %q...", srcImageId))
 	for _, v := range s.ImageDestinations {
 		if v.ProjectId == s.ProjectId && v.Region == s.RegionId {
 			continue
@@ -59,6 +59,7 @@ func (s *stepCopyUCloudImage) Run(ctx context.Context, state multistep.StateBag)
 		ui.Message(fmt.Sprintf("Copying image from %s:%s:%s to %s:%s:%s)",
 			s.ProjectId, s.RegionId, srcImageId, v.ProjectId, v.Region, resp.TargetImageId))
 	}
+	ui.Message("Waiting for the copied images to become available...")
 
 	err := retry.Config{
 		Tries:       200,
diff --git a/builder/ucloud/uhost/step_create_image.go b/builder/ucloud/uhost/step_create_image.go
index 9f6e46f2e..6389b4b22 100644
--- a/builder/ucloud/uhost/step_create_image.go
+++ b/builder/ucloud/uhost/step_create_image.go
@@ -23,7 +23,7 @@ func (s *stepCreateImage) Run(ctx context.Context, state multistep.StateBag) mul
 	ui := state.Get("ui").(packer.Ui)
 	config := state.Get("config").(*Config)
 
-	ui.Say(fmt.Sprintf("Creating image %s", config.ImageName))
+	ui.Say(fmt.Sprintf("Creating image %s...", config.ImageName))
 
 	req := conn.NewCreateCustomImageRequest()
 	req.ImageName = ucloud.String(config.ImageName)
@@ -34,6 +34,7 @@ func (s *stepCreateImage) Run(ctx context.Context, state multistep.StateBag) mul
 	if err != nil {
 		return halt(state, err, "Error on creating image")
 	}
+	ui.Message(fmt.Sprintf("Waiting for the created image %q to become available...", resp.ImageId))
 
 	err = retry.Config{
 		Tries: 200,
diff --git a/builder/ucloud/uhost/step_create_instance.go b/builder/ucloud/uhost/step_create_instance.go
index ac56254f6..f5554ee70 100644
--- a/builder/ucloud/uhost/step_create_instance.go
+++ b/builder/ucloud/uhost/step_create_instance.go
@@ -141,9 +141,9 @@ func (s *stepCreateInstance) Cleanup(state multistep.StateBag) {
 	}
 
 	if instance.State != instanceStateStopped {
-		stopReq := conn.NewPoweroffUHostInstanceRequest()
+		stopReq := conn.NewStopUHostInstanceRequest()
 		stopReq.UHostId = ucloud.String(s.instanceId)
-		if _, err = conn.PoweroffUHostInstance(stopReq); err != nil {
+		if _, err = conn.StopUHostInstance(stopReq); err != nil {
 			ui.Error(fmt.Sprintf("Error on stopping instance when deleting %q, %s",
 				s.instanceId, err.Error()))
 			return
diff --git a/builder/ucloud/uhost/step_stop_instance.go b/builder/ucloud/uhost/step_stop_instance.go
index 4a87d4059..548a8d20f 100644
--- a/builder/ucloud/uhost/step_stop_instance.go
+++ b/builder/ucloud/uhost/step_stop_instance.go
@@ -27,7 +27,7 @@ func (s *stepStopInstance) Run(ctx context.Context, state multistep.StateBag) mu
 	}
 
 	if instance.State != instanceStateStopped {
-		stopReq := conn.NewPoweroffUHostInstanceRequest()
+		stopReq := conn.NewStopUHostInstanceRequest()
 		stopReq.UHostId = ucloud.String(instance.UHostId)
 		ui.Say(fmt.Sprintf("Stopping instance %q", instance.UHostId))
 		err = retry.Config{
@@ -37,7 +37,7 @@ func (s *stepStopInstance) Run(ctx context.Context, state multistep.StateBag) mu
 			},
 			RetryDelay: (&retry.Backoff{InitialBackoff: 2 * time.Second, MaxBackoff: 6 * time.Second, Multiplier: 2}).Linear,
 		}.Run(ctx, func(ctx context.Context) error {
-			if _, err = conn.PoweroffUHostInstance(stopReq); err != nil {
+			if _, err = conn.StopUHostInstance(stopReq); err != nil {
 				return err
 			}
 			return nil
diff --git a/website/source/docs/builders/ucloud-uhost.html.md b/website/source/docs/builders/ucloud-uhost.html.md
index 4755379f9..ad6f6478a 100644
--- a/website/source/docs/builders/ucloud-uhost.html.md
+++ b/website/source/docs/builders/ucloud-uhost.html.md
@@ -26,7 +26,7 @@ In addition to the options listed here, a
 [communicator](../templates/communicator.html) can be configured for this
 builder.
 
-\~&gt; **Note:** The bulider doesn't support Windows images for now and only supports CentoOS and ubuntu images via SSH anthentication with `ssh_username` (Required) and `ssh_password` (Optional).  The `ssh_username` must be `root` for CentOS images and `ubuntu` for Ubuntu images. The `ssh_password` may contain 8-30 characters, and must be consisted with at least 2 items out of the capital letters, lower case letters, numbers and special characters. The special characters include <code>`()~!@#$%^&*-+=_|{}\[]:;'<>,.?/</code>.
+\~&gt; **Note:** The bulider doesn't support Windows images for now and only supports CentOS and Ubuntu images via SSH anthentication with `ssh_username` (Required) and `ssh_password` (Optional).  The `ssh_username` must be `root` for CentOS images and `ubuntu` for Ubuntu images. The `ssh_password` may contain 8-30 characters, and must consist of at least 2 items out of the capital letters, lower case letters, numbers and special characters. The special characters include <code>`()~!@#$%^&*-+=_|{}\[]:;'<>,.?/</code>.
 
 ### Required:
 
@@ -84,9 +84,9 @@ builder.
 
     -   `description` (number) - The copied image description.
 
-## Basic Example
+## Examples
 
-Here is a basic example for build UCloud image.
+Here is a basic example for build UCloud CentOS image:
 
 ``` json
 {
@@ -95,6 +95,7 @@ Here is a basic example for build UCloud image.
     "ucloud_private_key": "{{env `UCLOUD_PRIVATE_KEY`}}",
     "ucloud_project_id": "{{env `UCLOUD_PROJECT_ID`}}"
   },
+  
   "builders": [{
     "type":"ucloud-uhost",
     "public_key":"{{user `ucloud_public_key`}}",
@@ -110,6 +111,44 @@ Here is a basic example for build UCloud image.
 }
 ```
 
+Here is a example for build UCloud Ubuntu image:
+
+``` json
+{
+  "variables": {
+    "ucloud_public_key": "{{env `UCLOUD_PUBLIC_KEY`}}",
+    "ucloud_private_key": "{{env `UCLOUD_PRIVATE_KEY`}}",
+    "ucloud_project_id": "{{env `UCLOUD_PROJECT_ID`}}",
+    "password": "ucloud_2019"
+  },
+  
+  "builders": [{
+      "type": "ucloud-uhost",
+      "public_key": "{{user `ucloud_public_key`}}",
+      "private_key": "{{user `ucloud_private_key`}}",
+      "project_id": "{{user `ucloud_project_id`}}",
+      "region": "cn-bj2",
+      "availability_zone": "cn-bj2-02",
+      "instance_type": "n-basic-2",
+      "source_image_id": "uimage-irofn4",
+      "ssh_password": "{{user `password`}}",
+      "ssh_username": "ubuntu",
+      "image_name": "packer-test-ubuntu-bj"
+    }],
+  
+    "provisioners": [{
+      "type": "shell",
+      "execute_command": "echo '{{user `password`}}' | sudo -S '{{.Path}}'",
+      "inline": [
+        "sleep 30",
+        "sudo apt update",
+        "sudo apt install nginx -y"
+      ]
+    }]
+}
+```
+
+
 -&gt; **Note:** Packer can also read the public key and private key from
 environmental variables. See the configuration reference in the section above
 for more information on what environmental variables Packer will look for.