diff --git a/httprunner/ext/locusts/__init__.py b/httprunner/ext/locusts/__init__.py
index 7c05d6f2..747fbfc1 100644
--- a/httprunner/ext/locusts/__init__.py
+++ b/httprunner/ext/locusts/__init__.py
@@ -29,6 +29,17 @@ def init_parser_locusts(subparsers):
 def main_locusts(args, extra_args):
     """ Performance test with locust: parse command line options and run commands.
     """
+    try:
+        from locust.main import main
+    except ImportError:
+        msg = """
+    Locust is not installed, install first and try again.
+    install with pip:
+    $ pip install locustio
+    """
+        logger.error(msg)
+        sys.exit(1)
+
     logger.info(f"HttpRunner version: {__version__}")
     sys.argv = ["locust", *extra_args]
 
diff --git a/httprunner/ext/locusts/core.py b/httprunner/ext/locusts/core.py
index c03049aa..51823c85 100644
--- a/httprunner/ext/locusts/core.py
+++ b/httprunner/ext/locusts/core.py
@@ -5,17 +5,6 @@ import sys
 
 from loguru import logger
 
-try:
-    from locust import main as locust_main
-except ImportError:
-    msg = """
-Locust is not installed, install first and try again.
-install with pip:
-$ pip install locustio
-"""
-    logger.error(msg)
-    sys.exit(0)
-
 
 def parse_locustfile(file_path):
     """ parse testcase file and return locustfile path.
@@ -59,7 +48,8 @@ def gen_locustfile(testcase_file_path):
 
 def start_locust_main():
     logger.info(f"run command: {sys.argv}")
-    locust_main.main()
+    from locust.main import main
+    main()
 
 
 def start_master(sys_argv):