diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index 54a66cc9..da8e764d 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -14,6 +14,7 @@
 - remove dependency colorama and colorlog
 - generate reports/logs folder in current working directory
 - remove cli `--validate`
+- remove cli `--pretty`
 
 ## 2.5.7 (2020-02-21)
 
diff --git a/docs/prepare/validate-pretty.md b/docs/prepare/validate-pretty.md
deleted file mode 100644
index 62ae3610..00000000
--- a/docs/prepare/validate-pretty.md
+++ /dev/null
@@ -1,39 +0,0 @@
-
-HttpRunner 从 `1.3.1` 版本开始，支持对 JSON 格式测试用例的内容进行样式美化功能。
-
-## JSON 格式美化
-
-与 YAML 格式不同，JSON 格式不强制要求缩进和换行，这有点类似于 C 语言和 Python 语言的差异。
-
-例如，`demo-quickstart.json`文件也可以改写为如下形式。
-
-```json
-[{"config": {"name": "testcase description","variables": [],"request": {"base_url": "","headers": {"User-Agent": "python-requests/2.18.4"}}}},{"test": {"name": "/api/get-token","request": {"url": "http://127.0.0.1:5000/api/get-token","headers": {"device_sn": "FwgRiO7CNA50DSU","user_agent": "iOS/10.3","os_platform": "ios","app_version": "2.8.6","Content-Type": "application/json"},"method": "POST","json": {"sign": "9c0c7e51c91ae963c833a4ccbab8d683c4a90c98"}},"validate": [{"eq": ["status_code",200]},{"eq": ["headers.Content-Type","application/json"]},{"eq": ["content.success",true]},{"eq": ["content.token","baNLX1zhFYP11Seb"]}]}},{"test": {"name": "/api/users/1000","request": {"url": "http://127.0.0.1:5000/api/users/1000","headers": {"device_sn": "FwgRiO7CNA50DSU","token": "baNLX1zhFYP11Seb","Content-Type": "application/json"},"method": "POST","json": {"name": "user1","password": "123456"}},"validate": [{"eq": ["status_code",201]},{"eq": ["headers.Content-Type","application/json"]},{"eq": ["content.success",true]},{"eq": ["content.msg","user created successfully."]}]}}]
-```
-
-虽然上面 JSON 格式的测试用例也能正常执行，但测试用例文件的可读性太差，不利于阅读和维护。
-
-针对该需求，可使用 `--prettify` 参数对 JSON 格式用例文件进行样式美化。
-
-可指定单个 JSON 用例文件路径。
-
-```bash
-$ hrun --prettify docs/data/demo-quickstart.json
-Start to prettify JSON file: docs/data/demo-quickstart.json
-success: docs/data/demo-quickstart.pretty.json
-```
-
-也可指定多个 JSON 用例文件路径。
-
-```bash
-$ hrun --prettify docs/data/demo-quickstart.json docs/data/demo-quickstart.yml docs/data/demo-quickstart-0.json
-WARNING  Only JSON file format can be prettified, skip: docs/data/demo-quickstart.yml
-Start to prettify JSON file: docs/data/demo-quickstart.json
-success: docs/data/demo-quickstart.pretty.json
-Start to prettify JSON file: docs/data/demo-quickstart-0.json
-success: docs/data/demo-quickstart-0.pretty.json
-```
-
-如上所示，当传入的文件后缀不是`.json`，HttpRunner 会打印 WARNING 信息，并跳过检测。
-
-若转换成功，则打印美化后的文件路径；若 JSON 文件格式存在异常，则打印详细的报错信息，精确到错误在文件中出现的行和列。
diff --git a/httprunner/cli.py b/httprunner/cli.py
index bdf10f64..852a9495 100644
--- a/httprunner/cli.py
+++ b/httprunner/cli.py
@@ -5,12 +5,10 @@ import sys
 import sentry_sdk
 from loguru import logger
 
-from httprunner import __description__, __version__, exceptions
+from httprunner import __description__, __version__
 from httprunner.api import HttpRunner
-from httprunner.loader import load_cases
 from httprunner.report import gen_html_report
-from httprunner.utils import (create_scaffold,
-                              prettify_json_file, init_sentry_sdk)
+from httprunner.utils import create_scaffold, init_sentry_sdk
 
 init_sentry_sdk()
 
@@ -52,9 +50,6 @@ def main():
     parser.add_argument(
         '--startproject',
         help="Specify new project name.")
-    parser.add_argument(
-        '--prettify', nargs='*',
-        help="Prettify JSON testcase format.")
 
     args = parser.parse_args()
 
@@ -67,10 +62,6 @@ def main():
         print(f"{__version__}")
         sys.exit(0)
 
-    if args.prettify:
-        prettify_json_file(args.prettify)
-        sys.exit(0)
-
     project_name = args.startproject
     if project_name:
         create_scaffold(project_name)
diff --git a/httprunner/utils.py b/httprunner/utils.py
index 8536e904..75feedb5 100644
--- a/httprunner/utils.py
+++ b/httprunner/utils.py
@@ -514,33 +514,6 @@ def gen_cartesian_product(*args):
     return product_list
 
 
-def prettify_json_file(file_list):
-    """ prettify JSON testcase format
-    """
-    for json_file in set(file_list):
-        if not json_file.endswith(".json"):
-            logger.warning(f"Only JSON file format can be prettified, skip: {json_file}")
-            continue
-
-        logger.info(f"Start to prettify JSON file: {json_file}")
-
-        dir_path = os.path.dirname(json_file)
-        file_name, file_suffix = os.path.splitext(os.path.basename(json_file))
-        outfile = os.path.join(dir_path, f"{file_name}.pretty.json")
-
-        with io.open(json_file, 'r', encoding='utf-8') as stream:
-            try:
-                obj = json.load(stream)
-            except ValueError as e:
-                raise SystemExit(e)
-
-        with io.open(outfile, 'w', encoding='utf-8') as out:
-            json.dump(obj, out, indent=4, separators=(',', ': '))
-            out.write('\n')
-
-        print(f"success: {outfile}")
-
-
 def omit_long_data(body, omit_len=512):
     """ omit too long str/bytes
     """
diff --git a/mkdocs.yml b/mkdocs.yml
index 2ef012ca..fe71cc6b 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -66,7 +66,6 @@ nav:
         - 环境变量: prepare/dot-env.md
         - 测试用例分层: prepare/testcase-layer.md
         - 参数化数据驱动: prepare/parameters.md
-        - Validate & Prettify: prepare/validate-pretty.md
         - 信息安全: prepare/security.md
         - 文件上传场景: prepare/upload-case.md
     - 测试执行: