diff --git a/splunklib/binding.py b/splunklib/binding.py
index 370f076cf..bf7d1ac0e 100644
--- a/splunklib/binding.py
+++ b/splunklib/binding.py
@@ -27,6 +27,7 @@
 from __future__ import absolute_import
 
 import io
+import json
 import logging
 import socket
 import ssl
@@ -60,12 +61,17 @@
     "HTTPError"
 ]
 
+SENSITIVE_KEYS = ['Authorization', 'Cookie', 'action.email.auth_password', 'auth', 'auth_password', 'clear_password', 'clientId',
+                  'crc-salt', 'encr_password', 'oldpassword', 'passAuth', 'password', 'session', 'suppressionKey',
+                  'token']
+
 # If you change these, update the docstring
 # on _authority as well.
 DEFAULT_HOST = "localhost"
 DEFAULT_PORT = "8089"
 DEFAULT_SCHEME = "https"
 
+
 def _log_duration(f):
     @wraps(f)
     def new_f(*args, **kwargs):
@@ -77,6 +83,28 @@ def new_f(*args, **kwargs):
     return new_f
 
 
+def mask_sensitive_data(data):
+    '''
+    Masked sensitive fields data for logging purpose
+    '''
+    if not isinstance(data, dict):
+        try:
+            data = json.loads(data)
+        except Exception as ex:
+            return data
+
+    # json.loads will return "123"(str) as 123(int), so return the data if it's not 'dict' type
+    if not isinstance(data, dict):
+        return data
+    mdata = {}
+    for k, v in data.items():
+        if k in SENSITIVE_KEYS:
+            mdata[k] = "******"
+        else:
+            mdata[k] = mask_sensitive_data(v)
+    return mdata
+
+
 def _parse_cookies(cookie_str, dictionary):
     """Tries to parse any key-value pairs of cookies in a string,
     then updates the the dictionary with any key-value pairs found.
@@ -630,7 +658,7 @@ def delete(self, path_segment, owner=None, app=None, sharing=None, **query):
         """
         path = self.authority + self._abspath(path_segment, owner=owner,
                                               app=app, sharing=sharing)
-        logger.debug("DELETE request to %s (body: %s)", path, repr(query))
+        logger.debug("DELETE request to %s (body: %s)", path, mask_sensitive_data(query))
         response = self.http.delete(path, self._auth_headers, **query)
         return response
 
@@ -693,7 +721,7 @@ def get(self, path_segment, owner=None, app=None, headers=None, sharing=None, **
 
         path = self.authority + self._abspath(path_segment, owner=owner,
                                               app=app, sharing=sharing)
-        logger.debug("GET request to %s (body: %s)", path, repr(query))
+        logger.debug("GET request to %s (body: %s)", path, mask_sensitive_data(query))
         all_headers = headers + self.additional_headers + self._auth_headers
         response = self.http.get(path, all_headers, **query)
         return response
@@ -772,12 +800,7 @@ def post(self, path_segment, owner=None, app=None, sharing=None, headers=None, *
 
         path = self.authority + self._abspath(path_segment, owner=owner, app=app, sharing=sharing)
 
-        # To avoid writing sensitive data in debug logs
-        endpoint_having_sensitive_data = ["/storage/passwords"]
-        if any(endpoint in path for endpoint in endpoint_having_sensitive_data):
-            logger.debug("POST request to %s ", path)
-        else:
-            logger.debug("POST request to %s (body: %s)", path, repr(query))
+        logger.debug("POST request to %s (body: %s)", path, mask_sensitive_data(query))
         all_headers = headers + self.additional_headers + self._auth_headers
         response = self.http.post(path, all_headers, **query)
         return response
@@ -844,8 +867,7 @@ def request(self, path_segment, method="GET", headers=None, body={},
 
         all_headers = headers + self.additional_headers + self._auth_headers
         logger.debug("%s request to %s (headers: %s, body: %s)",
-                      method, path, str(all_headers), repr(body))
-
+                     method, path, str(mask_sensitive_data(dict(all_headers))), mask_sensitive_data(body))
         if body:
             body = _encode(**body)