diff --git a/src/Fengling.Activity.Domain/Services/CampaignExecutionService.cs b/src/Fengling.Activity.Domain/Services/CampaignExecutionService.cs
index bde4fe2..bdbe338 100644
--- a/src/Fengling.Activity.Domain/Services/CampaignExecutionService.cs
+++ b/src/Fengling.Activity.Domain/Services/CampaignExecutionService.cs
@@ -64,7 +64,7 @@ public class CampaignExecutionService
 
         var context = new CampaignContext
         {
-            CampaignId = campaignId.Value,
+            CampaignId = campaignId.Id,
             TenantId = tenantId.Value,
             MemberId = memberId,
             MemberLevel = memberLevel,
diff --git a/src/Fengling.Activity.Domain/ValueObjects/CampaignId.cs b/src/Fengling.Activity.Domain/ValueObjects/CampaignId.cs
index 51c8648..3e70663 100644
--- a/src/Fengling.Activity.Domain/ValueObjects/CampaignId.cs
+++ b/src/Fengling.Activity.Domain/ValueObjects/CampaignId.cs
@@ -2,8 +2,6 @@ namespace Fengling.Activity.Domain.ValueObjects;
 
 public partial record CampaignId : IGuidStronglyTypedId
 {
-    public static CampaignId New() => new CampaignId(Guid.NewGuid());
-    public Guid Value => this;
-    public static implicit operator Guid(CampaignId id) => id.Value;
+    public static implicit operator Guid(CampaignId id) => id.Id;
     public static implicit operator CampaignId(Guid value) => new CampaignId(value);
 }
diff --git a/src/Fengling.Activity.Web/Controllers/CampaignsController.cs b/src/Fengling.Activity.Web/Controllers/CampaignsController.cs
index 57153a9..8cbec66 100644
--- a/src/Fengling.Activity.Web/Controllers/CampaignsController.cs
+++ b/src/Fengling.Activity.Web/Controllers/CampaignsController.cs
@@ -41,9 +41,9 @@ public class CampaignsController : ControllerBase
 
         await _campaignRepository.AddAsync(campaign, cancellationToken);
 
-        return CreatedAtAction(nameof(GetCampaign), new { campaignId = campaign.Id.Value }, new CreateCampaignResponse
+        return CreatedAtAction(nameof(GetCampaign), new { campaignId = campaign.Id }, new CreateCampaignResponse
         {
-            CampaignId = campaign.Id.Value,
+            CampaignId = campaign.Id,
             Name = campaign.Name.Value,
             Status = campaign.Status.ToString(),
             CreatedAt = campaign.CreatedAt
@@ -61,7 +61,7 @@ public class CampaignsController : ControllerBase
 
         return Ok(new GetCampaignResponse
         {
-            CampaignId = campaign.Id.Value,
+            CampaignId = campaign.Id,
             TenantId = campaign.TenantId.Value,
             Name = campaign.Name.Value,
             Type = campaign.Type.ToString(),
@@ -92,7 +92,7 @@ public class CampaignsController : ControllerBase
 
             return Ok(new PublishCampaignResponse
             {
-                CampaignId = campaign.Id.Value,
+                CampaignId = campaign.Id,
                 Status = campaign.Status.ToString(),
                 UpdatedAt = campaign.UpdatedAt
             });
@@ -118,7 +118,7 @@ public class CreateCampaignRequest
 
 public class CreateCampaignResponse
 {
-    public Guid CampaignId { get; set; }
+    public CampaignId CampaignId { get; set; } = default!;
     public string Name { get; set; } = "";
     public string Status { get; set; } = "";
     public DateTime CreatedAt { get; set; }