diff --git a/plugins/ai_face_det/ai_face_det_node.cpp b/plugins/ai_face_det/ai_face_det_node.cpp
index 49377d5..1cfc80e 100644
--- a/plugins/ai_face_det/ai_face_det_node.cpp
+++ b/plugins/ai_face_det/ai_face_det_node.cpp
@@ -616,6 +616,21 @@ private:
                           int orig_w, int orig_h,
                           int in_w, int in_h,
                           FaceDetResult& out) {
+        // Debug: log output tensor info once
+        static bool dbg_outs_logged = false;
+        if (!dbg_outs_logged) {
+            dbg_outs_logged = true;
+            LogInfo("[ai_face_det] DecodeRetinaFace: num_outputs=" + std::to_string(outs.size()));
+            for (size_t i = 0; i < outs.size(); ++i) {
+                std::string dims_str;
+                for (auto d : outs[i].dims) dims_str += std::to_string(d) + ",";
+                LogInfo("[ai_face_det]   out[" + std::to_string(i) + "] size=" + std::to_string(outs[i].size) +
+                        " dims=[" + dims_str + "]" +
+                        " zp=" + std::to_string(outs[i].zp) +
+                        " scale=" + std::to_string(outs[i].scale));
+            }
+        }
+
         // Find loc/conf/landms tensors.
         std::vector<NcTensor> locs;
         std::vector<NcTensor> confs;
@@ -639,6 +654,14 @@ private:
                 continue;
             }
         }
+
+        // Debug: log extracted tensor counts
+        if (!dbg_outs_logged || (locs.empty() || confs.empty())) {
+            LogWarn("[ai_face_det] extracted: locs=" + std::to_string(locs.size()) +
+                    " confs=" + std::to_string(confs.size()) +
+                    " landms=" + std::to_string(landms.size()));
+        }
+
         if (locs.empty() || confs.empty()) return;
 
         // Concatenate along N.