The invention provides a method for power distribution network area protection. Area protection is achieved on a power distribution network, the power distribution network comprises a master transformer substation, a slave transformer substation and a plurality of connecting switches, and the connecting switches are connected to a line between the master transformer substation and the slave transformer substation in series. The method comprises the steps that the current operating mode of the power distribution network is determined; under the current operating mode, a fault point generated when the line between the master transformer substation and the slave breaks down is acquired, the current operating state and the corresponding communication state of each connecting switch are acquired, a controllable connecting switch corresponding to the fault point is obtained according to the current operating state and the corresponding communication state of each connecting switch, a corresponding protection strategy is further started, the controllable connecting switch corresponding to the fault point is controlled to act, and power distribution network area protection is achieved. According to the method, the method can be suitable for various grid structures and different system operating modes, fault locating is automatically achieved, the number of protection actions is reduced, the speed of network reconstruction can be increased, and network reconstruction time can be shortened.