The server log-in system for the log-in in the user's end includes one server and one certificiation platform. First, the server receives the user's identification data and function item from the user and outputs one certification message including the user's identification data, the server code and the function item code to the certification platform. Then, the certification platform executes one check program based on the user's identification data, the server code and the function item code as well as the user's access authority and outputs the certification result to the server. Finally, the server enables or disables the user to access the function item according to the certification result. |