The invention discloses a website safety detection method and website safety detection system, relating to the field of website safety. The system comprises a client and a server end, wherein the server end further comprises a storage module, a scheduling module and a scanning module. The method comprises the following steps: obtaining website information to be detected by the client through a user operation interface and generating a safety detection task by the website information to be detected to be stored into the storage module of the server end; receiving the safety detection task sent by the scheduling module and analyzing a website to be scanned; starting to scan and feeding a scanning schedule and a scanning result back to the scheduling module; and updating the received scanning schedule and scanning result to the storage module by the scheduling module so as to be convenient for a user to inquire. With the adoption of the method disclosed by the invention, the user can freely and conveniently enjoy safety detection services of the website; and a group user can enjoy intensive scanning and leak checking functions through the client arrangement; and the website safety can be effectively guaranteed.