The invention discloses a detachable large-current connector which comprises a socket and a plug. The socket is composed of a socket insulation body, a socket cover plate, large-current jacks, a small-current contact pin, a screw and a sealing ring. The plug is composed of a plug insulation body, a plug cover plate, a large-current contact pin, a small-current contact pin, a screw and a sealing ring. The number of the large-current jacks is three, and the large-current contact jacks are all formed in the socket cover plate. The socket cover plate, the large-current jacks and the small-current contact pin are arranged in the socket insulation body, the sealing ring is arranged between the large-current jacks and the socket insulation body, and the screw enables the socket insulation body and the socket cover plate to be fixedly connected. The plug is plugged with the socket. According to the detachable large-current connector, the connecting structure of the large-current jacks or pins, the socket insulation body and the socket cover plate is changed, so that the detachable large-current connector is convenient to detach, guarantees the good electrical performance of products, and has the advantages of being simple in structure, low in manufacturing cost, good in anti-vibration effect, and convenient to maintain and mount.