diff --git a/moban/constants.py b/moban/constants.py
index a139ffb1..169cbe15 100644
--- a/moban/constants.py
+++ b/moban/constants.py
@@ -70,6 +70,7 @@
 LABEL_DEST = "destination"
 LABEL_FORCE_TEMPLATE_TYPE = "force_template_type"
 LABEL_TEMPLATE_TYPES = "template_types"
+LABEL_DEBUG = "debug"
 
 # error messages
 ERROR_DATA_FILE_NOT_FOUND = "Both %s and %s does not exist"
diff --git a/moban/main.py b/moban/main.py
index 75eec3d0..c5950400 100644
--- a/moban/main.py
+++ b/moban/main.py
@@ -11,6 +11,7 @@
 import sys
 import logging
 import argparse
+import logging.config
 
 from moban import plugins, reporter, constants, mobanfile, exceptions
 from moban.utils import merge
@@ -28,6 +29,12 @@ def main():
     parser = create_parser()
     options = vars(parser.parse_args())
     HASH_STORE.IGNORE_CACHE_FILE = options[constants.LABEL_FORCE]
+    if options[constants.LABEL_DEBUG]:
+        logging.basicConfig(
+            format="%(asctime)s - %(name)s - %(levelname)s - %(message)s",
+            level=logging.DEBUG,
+        )
+
     moban_file = options[constants.LABEL_MOBANFILE]
     load_engine_factory_and_engines()  # Error: jinja2 if removed
     if moban_file is None:
@@ -126,6 +133,13 @@ def create_parser():
         action="version",
         version="%(prog)s {v}".format(v=__version__),
     )
+    parser.add_argument(
+        "-d",
+        action="store_true",
+        dest=constants.LABEL_DEBUG,
+        default=False,
+        help="to show debug trace",
+    )
     return parser
 
 
diff --git a/moban/mobanfile/templates.py b/moban/mobanfile/templates.py
index 80e3f6c5..73240e38 100644
--- a/moban/mobanfile/templates.py
+++ b/moban/mobanfile/templates.py
@@ -7,6 +7,7 @@
 
 def handle_template(template_file, output, template_dirs):
     log.info("handling %s" % template_file)
+
     template_file = file_system.to_unicode(template_file)
     multi_fs = file_system.get_multi_fs(template_dirs)
     if template_file.endswith("**"):