diff --git a/biz/checkpoint/checkpoint_biz.py b/biz/checkpoint/checkpoint_biz.py
index e65d648..4228b15 100644
--- a/biz/checkpoint/checkpoint_biz.py
+++ b/biz/checkpoint/checkpoint_biz.py
@@ -14,13 +14,10 @@ from algorithm.common.npu_yolo_pose_onnx import YOLOv8_Pose_ONNX
 from yolox.tracker.byte_tracker import BYTETracker
 
 from utils.logger import get_logger
+from common.constants import MODEL_ROOT_PATH
 logger = get_logger(__name__)
 
-# ========================= 配置区 =========================
-# Kadian 模型路径与ROI（可根据实际情况修改）
-#DETECT_MODEL_PATH = 'YOLO_Weight/Kadian.onnx'
-DETECT_MODEL_PATH = r'D:\Python_Save\PoliceProject\Yolo_Weight\Kadian\Kadian_wanjia_xinkailing.onnx'
-#POSE_MODEL_PATH = 'YOLO_Weight/yolov8l-pose.onnx'
+DETECT_MODEL_PATH = 'YOLO_Weight/Kadian.onnx'
 
 # 默认相对ROI（与原文件一致）
 #ROI_RELATIVE = np.array([
@@ -63,9 +60,17 @@ class KadianDetector:
         # 摄像头额外参数
         self.params = params if params is not None else {}
 
+        # 模型路径：从 params 读取，未配置则使用默认值 DETECT_MODEL_PATH
+        model_path = self.params.get('model_path')
+        if model_path:
+            full_model_path = f"{MODEL_ROOT_PATH}/{model_path}"
+        else:
+            full_model_path = DETECT_MODEL_PATH
+        logger.info(f"Loading model from: {full_model_path}")
+
         # 模型加载
         self.detector = YOLOv8_ONNX(
-            DETECT_MODEL_PATH,
+            full_model_path,
             conf_threshold=0.6,
             iou_threshold=0.65,
             input_size=PERSON_CAR_INPUT_SIZE