The invention provides a game account leasing management system. An account input module is used for a lessor to input account information of a game account; a leasing module is used for counting and displaying the account information input by the lessor; an order placing module is used for a lessee to choose needed account information from the account information displayed by the leasing module, placing an order and executing payment operation; an unlock code generating module is used for generating an unlock code; a log-in module is used for the lessee to input the unlock code, according to the unlock code, a corresponding account name and log-in password are obtained, and a game is logged in automatically through the game account and log-in password. According to the game account leasing management system, when the lessee successfully pays, a randomly generated unlock code is provided for the lessee, when the lessee utilizes the unlock code for logging in the game, the system automatically obtains a real account name and log-in password of the leased game account to automatically finish inputting and logging in the game, the lessee cannot know the real account name and log-in password of the leased game account, and thus the safety of game account leasing is improved.