The invention relates to a
route leading method of self propelled device, which leads the self propelled device to a position which is fixed by a calling device to implement the relating work, the self propelled device is provided with a
wireless electric wave receiving unit with pointing function, the calling device is provided with a
wireless electric wave launching element, the
route lead method of the self propelled device comprises the following procedure; a. the
wireless electric wave lauching element sends out wireless electric wave
route leading
signal; b. the wireless electric wave receiving unit receives the wireless electric wave route leading
signal; c. according the intensity of the wireless electric wave route leading
signal, and makes the self propelled device decide the advancing direction and goes forward to the direction. With according to the strong and weak and direction of the wireless electric wave route leading signal, the invention decides the direction of the calling device, and moves forward along the direction, decide the distance between the calling device according the strong and weak of the received wireless electric wave route leading signal and decides the distance from the calling device.