diff --git a/server/gameserver/mapinstance.cc b/server/gameserver/mapinstance.cc
index 1566417a..183e9a98 100644
--- a/server/gameserver/mapinstance.cc
+++ b/server/gameserver/mapinstance.cc
@@ -465,6 +465,10 @@ bool MapInstance::Raycast(int layer, const glm::vec3& start, const glm::vec3& en
         hit_pos_[2] = epos[2];
         hit_result = false;
     }  else {
+        if (t < 0.00001f) {
+            return false;
+        }
+        //需要处理spos == epos的情况!!!!
         // Hit
         dtVlerp(hit_pos_, spos, epos, t);
         if (npolys > 0) {