diff --git a/CorsServer/CorsServer.WebApi31/Config/CorsOption.cs b/CorsServer/CorsServer.WebApi31/Config/CorsOption.cs
new file mode 100644
index 0000000..4ccd71e
--- /dev/null
+++ b/CorsServer/CorsServer.WebApi31/Config/CorsOption.cs
@@ -0,0 +1,35 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace CorsServer.WebApi31
+{
+    public class CorsOption
+    {
+        /// <summary>
+        /// 策略名称
+        /// </summary>
+        public string PolicyName { get; set; }
+
+        /// <summary>
+        /// 允许跨域的域名列表
+        /// </summary>
+        public List<string> Origins { get; set; }
+
+        /// <summary>
+        /// 允许跨域的方法
+        /// </summary>
+        public List<string> Methods { get; set; }
+
+        /// <summary>
+        /// 允许跨域的请求头
+        /// </summary>
+        public List<string> Headers { get; set; }
+
+        /// <summary>
+        /// 允许跨域的ExposedHeader
+        /// </summary>
+        public List<string> ExposedHeaders { get; set; }
+    }
+}