diff --git a/src/main/java/com/iflytop/gd/app/model/entity/Crafts.java b/src/main/java/com/iflytop/gd/app/model/entity/Crafts.java
index d00c4df..99e947c 100644
--- a/src/main/java/com/iflytop/gd/app/model/entity/Crafts.java
+++ b/src/main/java/com/iflytop/gd/app/model/entity/Crafts.java
@@ -4,6 +4,7 @@ import com.baomidou.mybatisplus.annotation.TableName;
 import com.iflytop.gd.infrastructure.repository.base.BaseEntity;
 import io.swagger.v3.oas.annotations.media.Schema;
 import jakarta.validation.constraints.NotBlank;
+import jakarta.validation.constraints.Positive;
 import lombok.Data;
 import lombok.EqualsAndHashCode;
 
@@ -20,7 +21,7 @@ public class Crafts extends BaseEntity {
     @Schema(description = "工艺步骤")
     private String steps;
 
-    @NotBlank
+    @Positive(message = "矿石ID 必须是正数")
     @Schema(description = "矿石ID")
     private Long oresId;
 }