diff --git a/src/llamafactory/model/model_utils/moe.py b/src/llamafactory/model/model_utils/moe.py
index 478dbf9e83..03f0ef53a5 100644
--- a/src/llamafactory/model/model_utils/moe.py
+++ b/src/llamafactory/model/model_utils/moe.py
@@ -176,6 +176,7 @@ def configure_moe(config: "PretrainedConfig", model_args: "ModelArguments", is_t
         "phimoe",
         "qwen2_moe",
         "qwen3_moe",
+        "qwen3_5_moe",
     ]:
         setattr(config, "output_router_logits", True)
 
@@ -195,6 +196,7 @@ def configure_moe(config: "PretrainedConfig", model_args: "ModelArguments", is_t
         "phimoe",
         "qwen2_moe",
         "qwen3_moe",
+        "qwen3_5_moe",
     ]:
         setattr(config, "router_aux_loss_coef", model_args.moe_aux_loss_coef)
 
diff --git a/tests/model/model_utils/test_moe.py b/tests/model/model_utils/test_moe.py
new file mode 100644
index 0000000000..9b7ee89160
--- /dev/null
+++ b/tests/model/model_utils/test_moe.py
@@ -0,0 +1,27 @@
+# Copyright 2025 the LlamaFactory team.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from types import SimpleNamespace
+
+from llamafactory.model.model_utils.moe import configure_moe
+
+
+def test_configure_moe_sets_qwen3_5_moe_aux_loss_config():
+    config = SimpleNamespace(model_type="qwen3_5_moe")
+    model_args = SimpleNamespace(moe_aux_loss_coef=0.01)
+
+    configure_moe(config, model_args, is_trainable=True)
+
+    assert config.output_router_logits is True
+    assert config.router_aux_loss_coef == 0.01