The invention provides a method and a gateway for remotely managing sensor network topology. The method comprises the following steps: a receiving equipment management server sends a device management (DM) order; the DM order acts on a pre-constructed management object (MO) node; the MO node comprises a node for finding a sensor network topology, a node for describing the sensor network topology, or a node for revising the sensor network topology; and according to the DM order, the sensor network is managed, wherein management comprises the processes of finding the sensor network topology, describing the sensor network topology or revising the sensor network topology. According to the method and the gateway of the embodiment of the invention, the sensor network after an M2M gateway can be subjected to remote topology management, and management realization complexity is lowered.