The disclosure provides a method for configuring a locking strategy of a mobile terminal, comprising: setting, at a locking strategy setting terminal, relevant information of a locking strategy which needs to be executed by a mobile terminal and transmitting the relevant information to the mobile terminal, when the mobile terminal determines that the mobile terminal is currently unlocked, storing the relevant information of the locking strategy which needs to be executed by the mobile terminal; or, inputting, at the mobile terminal, relevant information of a locking strategy which needs to be executed, and storing the inputted relevant information of the locking strategy which needs to be executed. The disclosure further provides a method for applying a locking strategy of a mobile terminal as well as a system and a terminal mobile for configuring a locking strategy of a mobile terminal. According to the technical solutions of the disclosure, the locking strategy of the mobile terminal can be conveniently and flexibly configured.