Wiring terminal provided with self-locking function

A wiring terminal provided with a self-locking function mainly solves the problem of poor reliability of wire pressing (wire locking) due to the fact that vibration easily leads to slight loosing of bolts during using processes of existing screw type wiring terminal blocks. The wiring terminal is characterized in that an upper inner-wall of a square hole (5) of a wire pressing frame (2) is provided with reversed-V-shaped grooves (7) which are distributed at two sides of a screwed hole (6) and along the axial direction of the square hole (5). The wiring terminal is provided with the wire pressing self-locking function, guarantees reliability of electric connection between the wiring terminal and conducting wires, and has the advantages of being simple in structure and good in performance of an electric connection.