Embodiment of the invention provides a method of controlling UAVs, unmanned aerial vehicles and the controller, the method comprising: determining a communication with the UAV remote control device interrupt to determine whether the surface is below the UAV land; determining beneath the surface of the land the UAV, the control of the drone landing. EXAMPLES The present invention embodiments of the invention, after the communication with the remote control device interrupts the UAV, the UAV in determining the bottom surface when the land, controlling the UAV landing UAV avoid drowning occurred assurance UAV safety, enhance the user experience.