diff --git a/builder/ucloud/uhost/access_config.go b/builder/ucloud/uhost/access_config.go
index 101da2561..ae1f074cc 100644
--- a/builder/ucloud/uhost/access_config.go
+++ b/builder/ucloud/uhost/access_config.go
@@ -85,6 +85,22 @@ func (c *AccessConfig) Config() error {
 
 }
 
+func (c *AccessConfig) ValidateProjectId(projectId string) error {
+
+	supportedProjectIds, err := c.getSupportedProjectIds()
+	if err != nil {
+		return err
+	}
+
+	for _, supportedProjectId := range supportedProjectIds {
+		if projectId == supportedProjectId {
+			return nil
+		}
+	}
+
+	return fmt.Errorf("%q is invalid, should be an valid ucloud project_id, got %q", "project_id", projectId)
+}
+
 func (c *AccessConfig) ValidateRegion(region string) error {
 
 	supportedRegions, err := c.getSupportedRegions()
@@ -98,7 +114,7 @@ func (c *AccessConfig) ValidateRegion(region string) error {
 		}
 	}
 
-	return fmt.Errorf("%q is valid, should be an valid ucloud region, got %q", "region", region)
+	return fmt.Errorf("%q is invalid, should be an valid ucloud region, got %q", "region", region)
 }
 
 func (c *AccessConfig) ValidateZone(region, zone string) error {
@@ -114,7 +130,30 @@ func (c *AccessConfig) ValidateZone(region, zone string) error {
 		}
 	}
 
-	return fmt.Errorf("%q is valid, should be an valid ucloud zone, got %q", "availability_zone", zone)
+	return fmt.Errorf("%q is invalid, should be an valid ucloud zone, got %q", "availability_zone", zone)
+}
+
+func (c *AccessConfig) getSupportedProjectIds() ([]string, error) {
+	client, err := c.Client()
+	conn := client.uaccountconn
+	if err != nil {
+		return nil, err
+	}
+
+	req := conn.NewGetProjectListRequest()
+	resp, err := conn.GetProjectList(req)
+	if err != nil {
+		return nil, err
+	}
+
+	validProjectIds := make([]string, len(resp.ProjectSet))
+	for _, val := range resp.ProjectSet {
+		if !isStringIn(val.ProjectId, validProjectIds) {
+			validProjectIds = append(validProjectIds, val.ProjectId)
+		}
+	}
+
+	return validProjectIds, nil
 }
 
 func (c *AccessConfig) getSupportedRegions() ([]string, error) {
diff --git a/builder/ucloud/uhost/builder.go b/builder/ucloud/uhost/builder.go
index 5f5aae2de..3ec4393bb 100644
--- a/builder/ucloud/uhost/builder.go
+++ b/builder/ucloud/uhost/builder.go
@@ -77,6 +77,7 @@ func (b *Builder) Run(ctx context.Context, ui packer.Ui, hook packer.Hook) (pack
 	// Build the steps
 	steps = []multistep.Step{
 		&stepPreValidate{
+			ProjectId:         b.config.ProjectId,
 			Region:            b.config.Region,
 			Zone:              b.config.Zone,
 			ImageDestinations: b.config.ImageDestinations,
diff --git a/builder/ucloud/uhost/step_pre_validate.go b/builder/ucloud/uhost/step_pre_validate.go
index 01fc38c71..5c578d08a 100644
--- a/builder/ucloud/uhost/step_pre_validate.go
+++ b/builder/ucloud/uhost/step_pre_validate.go
@@ -7,12 +7,17 @@ import (
 )
 
 type stepPreValidate struct {
+	ProjectId         string
 	Region            string
 	Zone              string
 	ImageDestinations []ImageDestination
 }
 
 func (s *stepPreValidate) Run(ctx context.Context, state multistep.StateBag) multistep.StepAction {
+	if err := s.validateProjectIds(state); err != nil {
+		return halt(state, err, "")
+	}
+
 	if err := s.validateRegions(state); err != nil {
 		return halt(state, err, "")
 	}
@@ -24,6 +29,30 @@ func (s *stepPreValidate) Run(ctx context.Context, state multistep.StateBag) mul
 	return multistep.ActionContinue
 }
 
+func (s *stepPreValidate) validateProjectIds(state multistep.StateBag) error {
+	ui := state.Get("ui").(packer.Ui)
+	config := state.Get("config").(*Config)
+
+	ui.Say("Validating project_id and copied project_ids...")
+
+	var errs *packer.MultiError
+	if err := config.ValidateProjectId(s.ProjectId); err != nil {
+		errs = packer.MultiErrorAppend(errs, err)
+	}
+
+	for _, imageDestination := range s.ImageDestinations {
+		if err := config.ValidateProjectId(imageDestination.ProjectId); err != nil {
+			errs = packer.MultiErrorAppend(errs, err)
+		}
+	}
+
+	if errs != nil && len(errs.Errors) > 0 {
+		return errs
+	}
+
+	return nil
+}
+
 func (s *stepPreValidate) validateRegions(state multistep.StateBag) error {
 	ui := state.Get("ui").(packer.Ui)
 	config := state.Get("config").(*Config)
diff --git a/go.mod b/go.mod
index 77f959adf..3359cad79 100644
--- a/go.mod
+++ b/go.mod
@@ -117,7 +117,7 @@ require (
 	golang.org/x/sync v0.0.0-20190423024810-112230192c58
 	golang.org/x/sys v0.0.0-20190425145619-16072639606e
 	golang.org/x/text v0.3.1 // indirect
-	golang.org/x/tools v0.0.0-20190612232758-d4e310b4a8a5 // indirect
+	golang.org/x/tools v0.0.0-20190613204242-ed0dc450797f // indirect
 	google.golang.org/api v0.3.1
 	google.golang.org/grpc v1.19.1
 	gopkg.in/h2non/gock.v1 v1.0.12 // indirect
diff --git a/go.sum b/go.sum
index 8eee8a358..27be84e5b 100644
--- a/go.sum
+++ b/go.sum
@@ -511,6 +511,8 @@ golang.org/x/tools v0.0.0-20190611222205-d73e1c7e250b h1:/mJ+GKieZA6hFDQGdWZrjj4
 golang.org/x/tools v0.0.0-20190611222205-d73e1c7e250b/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
 golang.org/x/tools v0.0.0-20190612232758-d4e310b4a8a5 h1:WfRBLVK37R+k1gUOKuZX8JtangyEXmuopHz5tazlZRo=
 golang.org/x/tools v0.0.0-20190612232758-d4e310b4a8a5/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
+golang.org/x/tools v0.0.0-20190613204242-ed0dc450797f h1:+zypR5600WBcnJgA2nzZAsBlM8cArEGa8dhhiNE4u3w=
+golang.org/x/tools v0.0.0-20190613204242-ed0dc450797f/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
 google.golang.org/api v0.0.0-20180910000450-7ca32eb868bf/go.mod h1:4mhQ8q/RsB7i+udVvVy5NUi08OU8ZlA0gRVgrF7VFY0=
 google.golang.org/api v0.0.0-20181030000543-1d582fd0359e/go.mod h1:4mhQ8q/RsB7i+udVvVy5NUi08OU8ZlA0gRVgrF7VFY0=
 google.golang.org/api v0.1.0 h1:K6z2u68e86TPdSdefXdzvXgR1zEMa+459vBSfWYAZkI=
diff --git a/website/source/docs/builders/ucloud-uhost.html.md b/website/source/docs/builders/ucloud-uhost.html.md
index faa0cbdac..328dbaa81 100644
--- a/website/source/docs/builders/ucloud-uhost.html.md
+++ b/website/source/docs/builders/ucloud-uhost.html.md
@@ -17,8 +17,6 @@ customized images based on an existing base images.
 This builder builds an UCloud image by launching an UHost instance from a source image,
 provisioning that running machine, and then creating an image from that machine.
 
-\~> **Note:**  This builder only support ssh authenticating with username and given password.
-
 ## Configuration Reference
 
 The following configuration options available for building UCloud images. They are
@@ -28,6 +26,8 @@ In addition to the options listed here, a
 [communicator](../templates/communicator.html) can be configured for this
 builder.
 
+\~> **Note:**  This builder only support ssh authenticating with username and given password.
+
 ### Required:
 
 -   `public_key` - (string) This is the UCloud public key. It must be provided, but it can also be sourced from the `UCLOUD_PUBLIC_KEY` environment variable.