The present invention discloses an unmanned aerial vehicle including a main body, a plurality of arms, a propulsion assembly and a battery assembly, where each arm is coupled to the main body and the propulsion assembly is disposed on the each arm. The battery assembly is accommodated in a battery compartment of the main body. The battery assembly includes a shell, a battery body substantially disposed in the shell, a clamp button, and a restorable elastic piece. An end of the clamp button is mounted or connects to the shell, and the other end of the clamp button is detachably coupled to the main body. An end of the restorable elastic piece is disposed on the shell or connect to the shell, and the other end of the restorable elastic piece contacts the clamp button.