diff --git a/IRaCIS.Core.Domain/BaseModel/Entity.cs b/IRaCIS.Core.Domain/BaseModel/Entity.cs
index f2dc1eddc..91638466d 100644
--- a/IRaCIS.Core.Domain/BaseModel/Entity.cs
+++ b/IRaCIS.Core.Domain/BaseModel/Entity.cs
@@ -16,6 +16,12 @@ namespace IRaCIS.Core.Domain.Models
 
     }
 
+    //针对dicom 
+    public interface IEntitySeqId
+    {
+        public Guid SeqId { get; set; }
+    }
+
     public abstract class Entity : IEntity<Guid>
     {
         [Key]
diff --git a/IRaCIS.Core.Domain/Image/DicomInstance.cs b/IRaCIS.Core.Domain/Image/DicomInstance.cs
index 3096a0046..cc9a83c3a 100644
--- a/IRaCIS.Core.Domain/Image/DicomInstance.cs
+++ b/IRaCIS.Core.Domain/Image/DicomInstance.cs
@@ -5,7 +5,7 @@ using System.ComponentModel.DataAnnotations.Schema;
 namespace IRaCIS.Core.Domain.Models
 {
     [Table("DicomInstance")]
-    public class DicomInstance : BaseFullAuditEntity
+    public class DicomInstance : BaseFullAuditEntity, IEntitySeqId
     {
         #region 导航属性
         [JsonIgnore]
@@ -18,7 +18,6 @@ namespace IRaCIS.Core.Domain.Models
         #endregion
 
 
-        [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
 
         public Guid SeqId { get; set; }
         public Guid StudyId { get; set; }
diff --git a/IRaCIS.Core.Domain/Image/DicomSeries.cs b/IRaCIS.Core.Domain/Image/DicomSeries.cs
index c4225697c..775cbe66f 100644
--- a/IRaCIS.Core.Domain/Image/DicomSeries.cs
+++ b/IRaCIS.Core.Domain/Image/DicomSeries.cs
@@ -6,7 +6,7 @@ using System.ComponentModel.DataAnnotations.Schema;
 namespace IRaCIS.Core.Domain.Models
 {
     [Table("DicomSeries")]
-    public class DicomSeries : BaseFullDeleteAuditEntity
+    public class DicomSeries : BaseFullDeleteAuditEntity, IEntitySeqId
     {
         #region 导航属性
         [JsonIgnore]
@@ -22,7 +22,6 @@ namespace IRaCIS.Core.Domain.Models
 
 
 
-        [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
         public Guid SeqId { get; set; }
         public Guid StudyId { get; set; }
         public string StudyInstanceUid { get; set; }
diff --git a/IRaCIS.Core.Domain/Image/DicomStudy.cs b/IRaCIS.Core.Domain/Image/DicomStudy.cs
index ede2cf307..b22588a77 100644
--- a/IRaCIS.Core.Domain/Image/DicomStudy.cs
+++ b/IRaCIS.Core.Domain/Image/DicomStudy.cs
@@ -6,7 +6,7 @@ using System.ComponentModel.DataAnnotations.Schema;
 namespace IRaCIS.Core.Domain.Models
 {
     [Table("DicomStudy")]
-    public class DicomStudy : BaseFullDeleteAuditEntity
+    public class DicomStudy : BaseFullDeleteAuditEntity, IEntitySeqId
     {
         #region 导航属性
         //一个检查 由多个人管理
@@ -41,7 +41,6 @@ namespace IRaCIS.Core.Domain.Models
 
         #endregion
 
-        [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
         public Guid SeqId { get; set; }
 
         public Guid TrialId { get; set; }
diff --git a/IRaCIS.Core.Domain/Image/SCPInstance.cs b/IRaCIS.Core.Domain/Image/SCPInstance.cs
index 844283149..4bc2ed272 100644
--- a/IRaCIS.Core.Domain/Image/SCPInstance.cs
+++ b/IRaCIS.Core.Domain/Image/SCPInstance.cs
@@ -5,7 +5,7 @@ using System.ComponentModel.DataAnnotations.Schema;
 namespace IRaCIS.Core.Domain.Models
 {
     [Table("SCPInstance")]
-    public class SCPInstance : BaseFullAuditEntity
+    public class SCPInstance : BaseFullAuditEntity, IEntitySeqId
     {
         #region 导航属性
         [JsonIgnore]
@@ -18,7 +18,6 @@ namespace IRaCIS.Core.Domain.Models
         #endregion
 
 
-        [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
 
         public Guid SeqId { get; set; }
         public Guid StudyId { get; set; }
diff --git a/IRaCIS.Core.Domain/Image/SCPSeries.cs b/IRaCIS.Core.Domain/Image/SCPSeries.cs
index 4cc3e689d..5e4d6abb8 100644
--- a/IRaCIS.Core.Domain/Image/SCPSeries.cs
+++ b/IRaCIS.Core.Domain/Image/SCPSeries.cs
@@ -6,7 +6,7 @@ using System.ComponentModel.DataAnnotations.Schema;
 namespace IRaCIS.Core.Domain.Models
 {
     [Table("SCPSeries")]
-    public class SCPSeries : BaseFullDeleteAuditEntity
+    public class SCPSeries : BaseFullDeleteAuditEntity, IEntitySeqId
     {
         #region 导航属性
         [JsonIgnore]
@@ -18,7 +18,6 @@ namespace IRaCIS.Core.Domain.Models
         #endregion
 
 
-        [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
         public Guid SeqId { get; set; }
         public Guid StudyId { get; set; }
         public string StudyInstanceUid { get; set; }
diff --git a/IRaCIS.Core.Domain/Image/SCPStudy.cs b/IRaCIS.Core.Domain/Image/SCPStudy.cs
index 5a11ca22f..33c3f29d0 100644
--- a/IRaCIS.Core.Domain/Image/SCPStudy.cs
+++ b/IRaCIS.Core.Domain/Image/SCPStudy.cs
@@ -6,7 +6,7 @@ using System.ComponentModel.DataAnnotations.Schema;
 namespace IRaCIS.Core.Domain.Models
 {
     [Table("SCPStudy")]
-    public class SCPStudy : BaseFullDeleteAuditEntity
+    public class SCPStudy : BaseFullDeleteAuditEntity, IEntitySeqId
     {
 
         #region 导航属性
@@ -31,9 +31,6 @@ namespace IRaCIS.Core.Domain.Models
         //0 未知  1 单重  2 双重
         public bool IsDoubleReview { get; set; }
 
-      
-
-        [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
         public Guid SeqId { get; set; }
 
         [ForeignKey("PatientId")]
diff --git a/IRaCIS.Core.Domain/Image/TaskInstance.cs b/IRaCIS.Core.Domain/Image/TaskInstance.cs
index 7276c500b..976ada1c5 100644
--- a/IRaCIS.Core.Domain/Image/TaskInstance.cs
+++ b/IRaCIS.Core.Domain/Image/TaskInstance.cs
@@ -4,7 +4,7 @@ using System.ComponentModel.DataAnnotations.Schema;
 
 namespace IRaCIS.Core.Domain.Models
 {
-    public class TaskInstance : BaseFullAuditEntity
+    public class TaskInstance : BaseFullAuditEntity, IEntitySeqId
     {
         #region 导航属性
         [JsonIgnore]
@@ -17,7 +17,6 @@ namespace IRaCIS.Core.Domain.Models
         #endregion
 
 
-        [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
 
         public Guid SeqId { get; set; }
         public Guid StudyId { get; set; }
diff --git a/IRaCIS.Core.Domain/Image/TaskSeries.cs b/IRaCIS.Core.Domain/Image/TaskSeries.cs
index 1328a7c9f..b6d1ba154 100644
--- a/IRaCIS.Core.Domain/Image/TaskSeries.cs
+++ b/IRaCIS.Core.Domain/Image/TaskSeries.cs
@@ -5,7 +5,7 @@ using System.ComponentModel.DataAnnotations.Schema;
 
 namespace IRaCIS.Core.Domain.Models
 {
-    public class TaskSeries : BaseFullDeleteAuditEntity
+    public class TaskSeries : BaseFullDeleteAuditEntity, IEntitySeqId
     {
         #region 导航属性
         [JsonIgnore]
@@ -18,7 +18,6 @@ namespace IRaCIS.Core.Domain.Models
 
 
 
-        [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
         public Guid SeqId { get; set; }
         public Guid StudyId { get; set; }
         public string StudyInstanceUid { get; set; }
diff --git a/IRaCIS.Core.Domain/Image/TaskStudy.cs b/IRaCIS.Core.Domain/Image/TaskStudy.cs
index b290796f9..7cabd23e5 100644
--- a/IRaCIS.Core.Domain/Image/TaskStudy.cs
+++ b/IRaCIS.Core.Domain/Image/TaskStudy.cs
@@ -5,7 +5,7 @@ using System.ComponentModel.DataAnnotations.Schema;
 
 namespace IRaCIS.Core.Domain.Models
 {
-    public class TaskStudy : BaseFullDeleteAuditEntity
+    public class TaskStudy : BaseFullDeleteAuditEntity, IEntitySeqId
     {
         #region 导航属性
         [JsonIgnore]
@@ -33,8 +33,6 @@ namespace IRaCIS.Core.Domain.Models
 
         #endregion
 
-
-        [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
         public Guid SeqId { get; set; }
 
         public Guid TrialId { get; set; }
diff --git a/IRaCIS.Core.Infra.EFCore/Context/IRaCISDBContext.cs b/IRaCIS.Core.Infra.EFCore/Context/IRaCISDBContext.cs
index c755e150e..c8be13bf5 100644
--- a/IRaCIS.Core.Infra.EFCore/Context/IRaCISDBContext.cs
+++ b/IRaCIS.Core.Infra.EFCore/Context/IRaCISDBContext.cs
@@ -94,6 +94,10 @@ namespace IRaCIS.Core.Infra.EFCore
                 {
                     modelBuilder.Entity(entityType.ClrType).Property<Guid>(nameof(Entity.Id)).HasValueGenerator<MySequentialGuidValueGenerator>();
                 }
+                if (typeof(IEntitySeqId).IsAssignableFrom(entityType.ClrType))
+                {
+                    modelBuilder.Entity(entityType.ClrType).Property<Guid>(nameof(IEntitySeqId.SeqId)).HasValueGenerator<MySequentialGuidValueGenerator>();
+                }
             }
 
         }