diff --git a/comm/unit/initializePremise.py b/comm/unit/initializePremise.py
index c2a2289..9a9183d 100644
--- a/comm/unit/initializePremise.py
+++ b/comm/unit/initializePremise.py
@@ -37,6 +37,51 @@ def read_json(summary, json_obj, case_path):
             raise Exception("用例关联的文件有误\n文件路径： %s" % json_obj)
 
 
+def prepare_case(pre_case_path, relevance):
+    """
+    调用前置接口并返回响应消息体
+    :param pre_case_path: 前置用例
+    :param relevance: 关联值对象
+    :return:
+    """
+    # 获取前置接口用例
+    logging.info("获取前置接口测试用例：{}".format(pre_case_path))
+    pre_case_yaml = PAGE_DIR + pre_case_path
+    pre_case_path = os.path.dirname(pre_case_yaml)
+    pre_case_dict = readYaml.read_yaml_data(pre_case_yaml)
+    pre_test_info = pre_case_dict['test_info']
+    pre_case_data = pre_case_dict['test_case'][0]
+    # 判断前置接口是否也存在前置接口
+    if pre_test_info["premise"]:
+        init_premise(pre_test_info, pre_case_data, pre_case_path)
+
+    for i in range(3):
+        # 处理前置接口测试信息
+        pre_test_info = replaceRelevance.replace(pre_test_info, relevance)
+        logging.debug("测试信息处理结果：{}".format(pre_test_info))
+        # 处理前置接口Cookies
+        if pre_test_info['cookies']:
+            aconfig = readYaml.read_yaml_data(API_CONFIG)
+            cookies = aconfig[PROJECT_NAME]['cookies']
+            logging.debug("请求Cookies处理结果：{}".format(cookies))
+        # 处理前置接口入参：获取入参-替换关联值-发送请求
+        pre_parameter = read_json(pre_case_data['summary'], pre_case_data['parameter'], pre_case_path)
+        pre_parameter = replaceRelevance.replace(pre_parameter, relevance)
+        pre_case_data['parameter'] = pre_parameter
+        logging.debug("请求参数处理结果：{}".format(pre_parameter))
+        logging.info("执行前置接口测试用例：{}".format(pre_test_info))
+        code, data = apiSend.send_request(pre_test_info, pre_case_data)
+        # 检查接口是否调用成功
+        if data:
+            return data
+        else:
+            time.sleep(1)
+            logging.error("前置接口请求失败！等待1秒后重试！")
+    else:
+        logging.info("前置接口请求失败！尝试三次失败！")
+        raise Exception("获取前置接口关联数据失败！")
+
+
 def init_premise(test_info, case_data, case_path):
     """用例前提条件执行，提取关键值
 
@@ -57,58 +102,31 @@ def init_premise(test_info, case_data, case_path):
         logging.debug("请求Cookies处理结果：{}".format(cookies))
 
     # 判断是否存在前置接口
-    pre_case_path = test_info["premise"]
-    if pre_case_path:
-        # 获取前置接口用例
-        logging.info("获取前置接口测试用例：{}".format(pre_case_path))
-        pre_case_yaml = PAGE_DIR + pre_case_path
-        pre_case_path = os.path.dirname(pre_case_yaml)
-        pre_case_dict = readYaml.read_yaml_data(pre_case_yaml)
-        pre_test_info = pre_case_dict['test_info']
-        pre_case_data = pre_case_dict['test_case'][0]
-        # 判断前置接口是否也存在前置接口
-        if pre_test_info["premise"]:
-            init_premise(pre_test_info, pre_case_data, pre_case_path)
-
-        for i in range(3):
-            # 处理前置接口测试信息
-            pre_test_info = replaceRelevance.replace(pre_test_info, __relevance)
-            logging.debug("测试信息处理结果：{}".format(pre_test_info))
-            # 处理前置接口Cookies
-            if pre_test_info['cookies']:
-                cookies = aconfig[PROJECT_NAME]['cookies']
-                logging.debug("请求Cookies处理结果：{}".format(cookies))
-            # 处理前置接口入参：获取入参-替换关联值-发送请求
-            pre_parameter = read_json(pre_case_data['summary'], pre_case_data['parameter'], pre_case_path)
-            pre_parameter = replaceRelevance.replace(pre_parameter, __relevance)
-            pre_case_data['parameter'] = pre_parameter
-            logging.debug("请求参数处理结果：{}".format(pre_parameter))
-            logging.info("执行前置接口测试用例：{}".format(pre_test_info))
-            code, data = apiSend.send_request(pre_test_info, pre_case_data)
-
-            # 检查接口是否调用成功
-            if data:
-                # 处理当前接口入参：获取入参-获取关联值-替换关联值
-                parameter = read_json(case_data['summary'], case_data['parameter'], case_path)
-                __relevance = readRelevance.get_relevance(data, parameter, __relevance)
-                parameter = replaceRelevance.replace(parameter, __relevance)
-                case_data['parameter'] = parameter
-                logging.debug("请求参数处理结果：{}".format(parameter))
-
-                # 获取当前接口期望结果：获取期望结果-获取关联值-替换关联值
-                expected_rs = read_json(case_data['summary'], case_data['check_body']['expected_result'], case_path)
-                parameter['data'] = data
-                __relevance = readRelevance.get_relevance(parameter, expected_rs, __relevance)
-                expected_rs = replaceRelevance.replace(expected_rs, __relevance)
-                case_data['check_body']['expected_result'] = expected_rs
-                logging.debug("期望返回处理结果：{}".format(case_data))
-                break
-            else:
-                time.sleep(1)
-                logging.error("前置接口请求失败！等待1秒后重试！")
+    pre_case_path_list = test_info["premise"]
+    if pre_case_path_list:
+        if isinstance(pre_case_path_list, list):
+            data = []
+            for pre_case_path in pre_case_path_list:
+                each_data = prepare_case(pre_case_path, __relevance)
+                data.append(each_data)
         else:
-            logging.info("前置接口请求失败！尝试三次失败！")
-            raise Exception("获取前置接口关联数据失败！")
+            data = prepare_case(pre_case_path_list, __relevance)
+
+        # 处理当前接口入参：获取入参-获取关联值-替换关联值
+        parameter = read_json(case_data['summary'], case_data['parameter'], case_path)
+        __relevance = readRelevance.get_relevance(data, parameter, __relevance)
+        parameter = replaceRelevance.replace(parameter, __relevance)
+        case_data['parameter'] = parameter
+        logging.debug("请求参数处理结果：{}".format(parameter))
+
+        # 获取当前接口期望结果：获取期望结果-获取关联值-替换关联值
+        expected_rs = read_json(case_data['summary'], case_data['check_body']['expected_result'], case_path)
+        parameter['data'] = data
+        __relevance = readRelevance.get_relevance(parameter, expected_rs, __relevance)
+        expected_rs = replaceRelevance.replace(expected_rs, __relevance)
+        case_data['check_body']['expected_result'] = expected_rs
+        logging.debug("期望返回处理结果：{}".format(case_data))
+
     else:
         # 处理当前接口入参：获取入参-获取关联值-替换关联值
         parameter = read_json(case_data['summary'], case_data['parameter'], case_path)