A method for restricting a usage region of a mobile terminal, wherein the method is performed by the mobile terminal, and the method comprises: obtaining cell identification information of at least one cell network that covers a current location of the mobile terminal, wherein the cell network corresponds to a wireless communications network corresponding to a network standard supported by the mobile terminal, and the cell identification information is frequency channel number information, or the cell identification information comprises frequency channel number information and auxiliary cell identification information; determining whether the cell identification information comprises cell identification information matching locked identification information, wherein a parameter of the locked identification information is in a one-to-one correspondence with a parameter of the cell identification information; and accessing, by the mobile terminal, a cell network corresponding to the locked identification information, when the obtained cell identification information comprises the cell identification information matching the locked identification information; or skipping accessing, by the mobile terminal, a wireless communication network when the obtained cell identification information does not comprise the cell identification information matching the locked identification information, characterized in that before the step of determining whether the cell identification information comprises cell identification information matching locked identification information, the method further comprises: determining a cell network having maximum signal strength in the at least one cell network that covers the current location of the mobile terminal, and sending cell identification information corresponding to the cell network having maximum signal strength to a control device connected to the mobile terminal; determining, according to a region lock instruction delivered by the control device, the cell identification information corresponding to the cell network having maximum signal strength, wherein the region lock instruction comprises the cell identification information corresponding to the cell network having maximum signal strength; and determining the cell identification information corresponding to the cell network having maximum signal strength as the locked identification information. obtaining cell identification information of at least one cell network that covers a current location of the mobile terminal, wherein the cell network corresponds to a wireless communications network corresponding to a network standard supported by the mobile terminal, and the cell identification information is frequency channel number information, or the cell identification information comprises frequency channel number information and auxiliary cell identification information; determining whether the cell identification information comprises cell identification information matching locked identification information, wherein a parameter of the locked identification information is in a one-to-one correspondence with a parameter of the cell identification information; and accessing, by the mobile terminal, a cell network corresponding to the locked identification information, when the obtained cell identification information comprises the cell identification information matching the locked identification information; or skipping accessing, by the mobile terminal, a wireless communication network when the obtained cell identification information does not comprise the cell identification information matching the locked identification information, characterized in that before the step of determining whether the cell identification information comprises cell identification information matching locked identification information, the method further comprises: determining a cell network having maximum signal strength in the at least one cell network that covers the current location of the mobile terminal, and sending cell identification information corresponding to the cell network having maximum signal strength to a control device connected to the mobile terminal; determining, according to a region lock instruction delivered by the control device, the cell identification information corresponding to the cell network having maximum signal strength, wherein the region lock instruction comprises the cell identification information corresponding to the cell network having maximum signal strength; and determining the cell identification information corresponding to the cell network having maximum signal strength as the locked identification information. determining a cell network having maximum signal strength in the at least one cell network that covers the current location of the mobile terminal, and sending cell identification information corresponding to the cell network having maximum signal strength to a control device connected to the mobile terminal; determining, according to a region lock instruction delivered by the control device, the cell identification information corresponding to the cell network having maximum signal strength, wherein the region lock instruction comprises the cell identification information corresponding to the cell network having maximum signal strength; and determining the cell identification information corresponding to the cell network having maximum signal strength as the locked identification information.