diff --git a/v2rayN/ServiceLib/Handler/Fmt/Hysteria2Fmt.cs b/v2rayN/ServiceLib/Handler/Fmt/Hysteria2Fmt.cs
index 3ba5973d..a3304938 100644
--- a/v2rayN/ServiceLib/Handler/Fmt/Hysteria2Fmt.cs
+++ b/v2rayN/ServiceLib/Handler/Fmt/Hysteria2Fmt.cs
@@ -1,5 +1,3 @@
-using System.Collections.Specialized;
-
 namespace ServiceLib.Handler.Fmt;
 
 public class Hysteria2Fmt : BaseFmt
@@ -178,6 +176,7 @@ public class Hysteria2Fmt : BaseFmt
             // and the value is restored when generating configurations.
             item.AllowInsecure = Global.StringTrue;
         }
+        item.EchConfigList = GetQueryDecoded(query, "ech");
         item.SetProtocolExtra(item.GetProtocolExtra() with
         {
             Ports = GetQueryDecoded(query, "mport"),
@@ -220,6 +219,10 @@ public class Hysteria2Fmt : BaseFmt
             var sha = item.CertSha;
             dicQuery.Add("pinSHA256", Utils.UrlEncode(sha));
         }
+        if (!item.EchConfigList.IsNullOrEmpty())
+        {
+            dicQuery.Add("ech", Utils.UrlEncode(item.EchConfigList));
+        }
         var protocolExtraItem = item.GetProtocolExtra();
         var isGecko = !protocolExtraItem.GeckoMinPacketSize.IsNullOrEmpty() || !protocolExtraItem.GeckoMaxPacketSize.IsNullOrEmpty();
         if (!protocolExtraItem.SalamanderPass.IsNullOrEmpty())