The present disclosure discloses a method, apparatus and system for controlling UAV, which relates to the field of unmanned aerial vehicles (UAV). The method includes: receiving one or more UAV control instructions sent by a ground station device, and each UAV control instruction includes a variable identification for identifying an UAV; for each of the UAV control instructions, acquiring an address identification of the corresponding UAV according to the variable identification in the UAV control instruction, and sending the corresponding UAV control instruction to a communication module of the UAV corresponding to the address identification via a mobile network, so that the UAV executes an operation corresponding to the received UAV control instruction, and the communication module of the UAV includes the address identification of the UAV.