diff --git a/split_novel.py b/split_novel.py
new file mode 100644
index 0000000..8917c6b
--- /dev/null
+++ b/split_novel.py
@@ -0,0 +1,41 @@
+from argparse import ArgumentDefaultsHelpFormatter, ArgumentParser
+from re import compile
+from os.path import join, splitext
+from os import makedirs
+
+
+arg = ArgumentParser(formatter_class=ArgumentDefaultsHelpFormatter)
+arg.add_argument('PATH', help='The path to input file.')
+arg.add_argument('-o', '--output', help="The path to output directory.",
+                 metavar='OUTPUT', dest='output')
+arg.add_argument('-e', '--encoding', help='File encoding.',
+                 default='UTF-8', metavar='ENCODING', dest='encoding')
+arg.add_argument('-r', '--regex', help='Chapter detect regex.',
+                 default=r'^第 ?\d+ ?章', metavar='REGEX', dest='regex')
+args = arg.parse_intermixed_args()
+print(args)
+regex = compile(args.regex)
+if args.output is None:
+    args.output = splitext(args.PATH)[0]
+makedirs(args.output, exist_ok=True)
+cur = []
+ind = 1
+with open(args.PATH, 'r', encoding=args.encoding) as f:
+    while True:
+        now = f.readline()
+        if not now.endswith('\n'):
+            break
+        now = now.rstrip('\n')
+        if regex.search(now) is not None:
+            print(now, len(cur))
+            if len(cur):
+                with open(join(args.output, f'{ind:06}.txt'), 'w', encoding=args.encoding) as o:
+                    o.write('\n'.join(cur))
+                    cur = []
+                    ind += 1
+        cur.append(now)
+if len(cur):
+    with open(join(args.output, f'{ind:06}.txt'), 'w', encoding=args.encoding) as o:
+        o.write('\n'.join(cur))
+        cur = []
+        ind += 1