The present disclosure relates to a wire connector, and a power supply assembly and an aerial vehicle using the wire connector. The aerial vehicle comprises a support frame, and a power supply assembly and a plurality of rotor assemblies arranged on the support frame. The rotor assemblies are electrically connected with the power supply assembly. The power supply assembly comprises a circuit board, a power source, wires electrically connected with the power source, and wire connectors arranged on the circuit board. The wires each comprise a conductive portion. The wire connectors each comprise a conductive member, a movable member, and an adjusting member. The movable member is arranged facing the conductive member. The conductive portion is located between the movable member and the conductive member. The adjusting member is arranged on the conductive member and penetrates through the conductive portion and the movable member.