diff --git a/db.sql b/db.sql
index 2661036..198f297 100644
--- a/db.sql
+++ b/db.sql
@@ -432,6 +432,9 @@ CREATE TABLE `t_order_declaration` (
   `ImHsCode` VARCHAR(50) NULL COMMENT '进口HsCode',
   `ExHsCode` VARCHAR(50) NULL COMMENT '出口HsCode',
   `DeclareElement` VARCHAR(255) NULL COMMENT '出口申报要素',
+  `ProductId` VARCHAR(100) NULL COMMENT '产品标识编码',
+  `NonStdProductId` VARCHAR(100) NULL COMMENT '非标产品标识编码',
+  `StdProductId` VARCHAR(100) NULL COMMENT '标准产品标识编码',
   `SkuImage` VARCHAR(512) NULL COMMENT '图片（存 storage key 或短 URL）',
   `Category` VARCHAR(20) NULL COMMENT '类别',
   `Brand` VARCHAR(50) NULL COMMENT '品牌',
diff --git a/sql/migrate_order_declaration_product_ids_20261019.sql b/sql/migrate_order_declaration_product_ids_20261019.sql
new file mode 100644
index 0000000..474a9fd
--- /dev/null
+++ b/sql/migrate_order_declaration_product_ids_20261019.sql
@@ -0,0 +1,55 @@
+-- 申报明细：新增产品标识编码 / 非标产品标识编码 / 标准产品标识编码。
+-- 可重复执行。
+
+SET @db := DATABASE();
+
+-- t_order_declaration.ProductId
+SET @exists := (
+  SELECT COUNT(1)
+  FROM information_schema.COLUMNS
+  WHERE TABLE_SCHEMA = @db
+    AND TABLE_NAME = 't_order_declaration'
+    AND COLUMN_NAME = 'ProductId'
+);
+SET @sql := IF(
+  @exists = 0,
+  'ALTER TABLE `t_order_declaration` ADD COLUMN `ProductId` VARCHAR(100) NULL COMMENT ''产品标识编码'' AFTER `DeclareElement`',
+  'SELECT ''t_order_declaration.ProductId already exists'' AS info'
+);
+PREPARE stmt FROM @sql;
+EXECUTE stmt;
+DEALLOCATE PREPARE stmt;
+
+-- t_order_declaration.NonStdProductId
+SET @exists := (
+  SELECT COUNT(1)
+  FROM information_schema.COLUMNS
+  WHERE TABLE_SCHEMA = @db
+    AND TABLE_NAME = 't_order_declaration'
+    AND COLUMN_NAME = 'NonStdProductId'
+);
+SET @sql := IF(
+  @exists = 0,
+  'ALTER TABLE `t_order_declaration` ADD COLUMN `NonStdProductId` VARCHAR(100) NULL COMMENT ''非标产品标识编码'' AFTER `ProductId`',
+  'SELECT ''t_order_declaration.NonStdProductId already exists'' AS info'
+);
+PREPARE stmt FROM @sql;
+EXECUTE stmt;
+DEALLOCATE PREPARE stmt;
+
+-- t_order_declaration.StdProductId
+SET @exists := (
+  SELECT COUNT(1)
+  FROM information_schema.COLUMNS
+  WHERE TABLE_SCHEMA = @db
+    AND TABLE_NAME = 't_order_declaration'
+    AND COLUMN_NAME = 'StdProductId'
+);
+SET @sql := IF(
+  @exists = 0,
+  'ALTER TABLE `t_order_declaration` ADD COLUMN `StdProductId` VARCHAR(100) NULL COMMENT ''标准产品标识编码'' AFTER `NonStdProductId`',
+  'SELECT ''t_order_declaration.StdProductId already exists'' AS info'
+);
+PREPARE stmt FROM @sql;
+EXECUTE stmt;
+DEALLOCATE PREPARE stmt;
diff --git a/src/Oms.Application/Dtos/Orders/OrderItemOutput.cs b/src/Oms.Application/Dtos/Orders/OrderItemOutput.cs
index 6797c7f..00ac7ba 100644
--- a/src/Oms.Application/Dtos/Orders/OrderItemOutput.cs
+++ b/src/Oms.Application/Dtos/Orders/OrderItemOutput.cs
@@ -70,6 +70,21 @@ public class OrderItemOutput
     /// </summary>
     public string? DeclareElement { get; set; }
 
+    /// <summary>
+    /// 产品标识编码。
+    /// </summary>
+    public string? ProductId { get; set; }
+
+    /// <summary>
+    /// 非标产品标识编码。
+    /// </summary>
+    public string? NonStdProductId { get; set; }
+
+    /// <summary>
+    /// 标准产品标识编码。
+    /// </summary>
+    public string? StdProductId { get; set; }
+
     /// <summary>
     /// SKU 图片。
     /// </summary>
diff --git a/src/Oms.Application/Dtos/Orders/OrderParcelItemInput.cs b/src/Oms.Application/Dtos/Orders/OrderParcelItemInput.cs
index 7f29d6f..ed71218 100644
--- a/src/Oms.Application/Dtos/Orders/OrderParcelItemInput.cs
+++ b/src/Oms.Application/Dtos/Orders/OrderParcelItemInput.cs
@@ -1,3 +1,5 @@
+using System.ComponentModel.DataAnnotations;
+
 namespace Oms.Application.Dtos.Orders;
 
 /// <summary>
@@ -65,6 +67,24 @@ public class OrderParcelItemInput
     /// </summary>
     public string? DeclareElement { get; set; }
 
+    /// <summary>
+    /// 产品标识编码（选填）。
+    /// </summary>
+    [StringLength(100)]
+    public string? ProductId { get; set; }
+
+    /// <summary>
+    /// 非标产品标识编码（选填）。
+    /// </summary>
+    [StringLength(100)]
+    public string? NonStdProductId { get; set; }
+
+    /// <summary>
+    /// 标准产品标识编码（选填）。
+    /// </summary>
+    [StringLength(100)]
+    public string? StdProductId { get; set; }
+
     /// <summary>
     /// SKU 图片。
     /// </summary>
diff --git a/src/Oms.Application/Services/Orders/Issues/AutoTriggerFormulaMeta.cs b/src/Oms.Application/Services/Orders/Issues/AutoTriggerFormulaMeta.cs
index e403be4..4754b59 100644
--- a/src/Oms.Application/Services/Orders/Issues/AutoTriggerFormulaMeta.cs
+++ b/src/Oms.Application/Services/Orders/Issues/AutoTriggerFormulaMeta.cs
@@ -199,6 +199,9 @@ public static class AutoTriggerFormulaMeta
         yield return ("进口HS编码", "t_order_declaration", "ImHsCode", FormulaValueType.String, false);
         yield return ("出口HS编码", "t_order_declaration", "ExHsCode", FormulaValueType.String, false);
         yield return ("出口申报要素", "t_order_declaration", "DeclareElement", FormulaValueType.String, false);
+        yield return ("产品标识编码", "t_order_declaration", "ProductId", FormulaValueType.String, false);
+        yield return ("非标产品标识编码", "t_order_declaration", "NonStdProductId", FormulaValueType.String, false);
+        yield return ("标准产品标识编码", "t_order_declaration", "StdProductId", FormulaValueType.String, false);
         yield return ("申报类别", "t_order_declaration", "Category", FormulaValueType.String, false);
         yield return ("品牌", "t_order_declaration", "Brand", FormulaValueType.String, false);
         yield return ("品牌类型", "t_order_declaration", "BrandType", FormulaValueType.String, false);
diff --git a/src/Oms.Application/Services/Orders/OrderService.Helpers.cs b/src/Oms.Application/Services/Orders/OrderService.Helpers.cs
index c15f066..d61441a 100644
--- a/src/Oms.Application/Services/Orders/OrderService.Helpers.cs
+++ b/src/Oms.Application/Services/Orders/OrderService.Helpers.cs
@@ -817,6 +817,9 @@ public partial class OrderService
             ImHsCode = x.ImHsCode ?? x.HsCode,
             ExHsCode = x.ExHsCode ?? x.HsCode,
             DeclareElement = x.DeclareElement,
+            ProductId = x.ProductId,
+            NonStdProductId = x.NonStdProductId,
+            StdProductId = x.StdProductId,
             SkuImage = FileStorage.GetPublicUrl(x.SkuImage),
             Category = x.Category,
             Brand = x.Brand,
diff --git a/src/Oms.Application/Services/Orders/OrderService.OrderEdit.cs b/src/Oms.Application/Services/Orders/OrderService.OrderEdit.cs
index 1f95706..2fad81d 100644
--- a/src/Oms.Application/Services/Orders/OrderService.OrderEdit.cs
+++ b/src/Oms.Application/Services/Orders/OrderService.OrderEdit.cs
@@ -1360,6 +1360,9 @@ public partial class OrderService
             ImHsCode = x.ImHsCode,
             ExHsCode = x.ExHsCode ?? x.ImHsCode,
             DeclareElement = x.DeclareElement,
+            ProductId = x.ProductId?.Trim(),
+            NonStdProductId = x.NonStdProductId?.Trim(),
+            StdProductId = x.StdProductId?.Trim(),
             SkuImage = OmsObjectStorageExtensions.ToStorageKey(x.SkuImage),
             Category = x.Category,
             Brand = x.Brand,
diff --git a/src/Oms.Application/Services/Orders/OrderService.ParcelBilling.cs b/src/Oms.Application/Services/Orders/OrderService.ParcelBilling.cs
index e9afb21..abaa68f 100644
--- a/src/Oms.Application/Services/Orders/OrderService.ParcelBilling.cs
+++ b/src/Oms.Application/Services/Orders/OrderService.ParcelBilling.cs
@@ -2213,6 +2213,9 @@ public partial class OrderService
                 ImHsCode = x.ImHsCode,
                 ExHsCode = x.ExHsCode,
                 DeclareElement = x.DeclareElement,
+                ProductId = x.ProductId?.Trim(),
+                NonStdProductId = x.NonStdProductId?.Trim(),
+                StdProductId = x.StdProductId?.Trim(),
                 SkuImage = OmsObjectStorageExtensions.ToStorageKey(x.SkuImage),
                 Category = x.Category,
                 Brand = x.Brand,
diff --git a/src/Oms.Application/Services/Orders/Templates/OrderTemplateFieldRegistry.cs b/src/Oms.Application/Services/Orders/Templates/OrderTemplateFieldRegistry.cs
index b5be7bd..ede5f25 100644
--- a/src/Oms.Application/Services/Orders/Templates/OrderTemplateFieldRegistry.cs
+++ b/src/Oms.Application/Services/Orders/Templates/OrderTemplateFieldRegistry.cs
@@ -215,6 +215,9 @@ public static class OrderTemplateFieldRegistry
         Add("items[0].weight", "总重量(kg)", false, "number", group: "declaration", example: "自动计算", hint: "不填=单重×数量");
         Add("items[0].imHsCode", "进口HsCode", false, group: "declaration", hint: "选填");
         Add("items[0].exHsCode", "出口HsCode", false, group: "declaration", hint: "选填");
+        Add("items[0].productId", "产品标识编码", false, group: "declaration", hint: "选填");
+        Add("items[0].nonStdProductId", "非标产品标识编码", false, group: "declaration", hint: "选填");
+        Add("items[0].stdProductId", "标准产品标识编码", false, group: "declaration", hint: "选填");
         Add("items[0].skuImage", "商品图片URL", false, group: "declaration", hint: "选填");
         Add("items[0].category", "类别", false, group: "declaration", example: "Accessories", hint: "选填");
         Add("items[0].brand", "品牌", false, group: "declaration", example: "DemoBrand", hint: "选填");
diff --git a/src/Oms.Application/Services/Orders/Templates/OrderTemplateRowMapper.cs b/src/Oms.Application/Services/Orders/Templates/OrderTemplateRowMapper.cs
index b1470a6..c308c56 100644
--- a/src/Oms.Application/Services/Orders/Templates/OrderTemplateRowMapper.cs
+++ b/src/Oms.Application/Services/Orders/Templates/OrderTemplateRowMapper.cs
@@ -20,6 +20,7 @@ public static class OrderTemplateRowMapper
         "sender.countryCode", "sender.province", "sender.city", "sender.zipCode", "sender.streetAddress1",
         "sender.streetAddress2", "sender.streetAddress3", "sender.houseNumber", "items[0].cnName", "items[0].enName",
         "items[0].sku", "items[0].unit", "items[0].imHsCode", "items[0].exHsCode", "items[0].skuImage",
+        "items[0].productId", "items[0].nonStdProductId", "items[0].stdProductId",
         "items[0].category", "items[0].brand", "items[0].brandType", "items[0].distribution", "items[0].material",
         "items[0].enMaterial", "items[0].purpose", "items[0].attributes", "items[0].originCountry", "items[0].salesLink",
         "items[0].model", "items[0].specifications", "items[0].comment"
diff --git a/src/Oms.Application/Shared/OrderDownstreamCreateOneBodyBuilder.cs b/src/Oms.Application/Shared/OrderDownstreamCreateOneBodyBuilder.cs
index 9908371..501a2a9 100644
--- a/src/Oms.Application/Shared/OrderDownstreamCreateOneBodyBuilder.cs
+++ b/src/Oms.Application/Shared/OrderDownstreamCreateOneBodyBuilder.cs
@@ -201,6 +201,9 @@ public static class OrderDownstreamCreateOneBodyBuilder
             ImHsCode = x.ImHsCode,
             ExHsCode = x.ExHsCode ?? x.HsCode,
             DeclareElement = x.DeclareElement,
+            ProductId = x.ProductId,
+            NonStdProductId = x.NonStdProductId,
+            StdProductId = x.StdProductId,
             SkuImage = fileStorage?.GetPublicUrl(x.SkuImage) ?? x.SkuImage,
             Category = x.Category,
             Brand = x.Brand,
diff --git a/src/Oms.Domain/OrdersAggregate/Entities/OrderDeclaration.cs b/src/Oms.Domain/OrdersAggregate/Entities/OrderDeclaration.cs
index ab158c3..39544ca 100644
--- a/src/Oms.Domain/OrdersAggregate/Entities/OrderDeclaration.cs
+++ b/src/Oms.Domain/OrdersAggregate/Entities/OrderDeclaration.cs
@@ -37,6 +37,21 @@ public class OrderDeclaration : OmsAuditedEntity
     /// </summary>
     public string? DeclareElement { get; set; }
 
+    /// <summary>
+    /// 产品标识编码。
+    /// </summary>
+    public string? ProductId { get; set; }
+
+    /// <summary>
+    /// 非标产品标识编码。
+    /// </summary>
+    public string? NonStdProductId { get; set; }
+
+    /// <summary>
+    /// 标准产品标识编码。
+    /// </summary>
+    public string? StdProductId { get; set; }
+
     public string? SkuImage { get; set; }
 
     public string? Category { get; set; }