Cable locking structure of electric connector

The invention discloses a cable locking structure of an electric connector, and the structure comprises a wire terminal, wherein one end part of the wire terminal comprises two contact arms which are oppositely arranged at an interval, and the other end part of the wire terminal comprises two side walls which are oppositely arranged at an interval; the lower edges of the two side walls are vertically provided with a wiring bottom wall; the two side walls and the wiring bottom wall form a U-shaped cavity for placing a cable conductor, one end, close to the contact arm, of the wiring bottom wall is bent to be provided with an elastic tongue piece, the side walls are movably connected with a wire pressing buckle, and when the wire pressing buckle is pressed downwards, one end of the wire pressing buckle is clamped with the elastic tongue piece, and the other end of the wire pressing buckle tightly presses the upper surface of the wiring bottom wall. The power supply connector has the advantages of simple structu