Waterproof male joint

The utility model provides a waterproof male head, which is characterized in that the waterproof male head comprises a shell (1) and a conductor (2) located in the shell (1), the rear end of the conductor (2) extends out of the shell (1) and is connected with a cable (4), a sealing cap (3) is installed at the rear end of the shell (1), and the outer wall of the conductor (2) is convexly provided with a special-shaped positioning part (211) which is in positioning fit with the inner wall of the shell (1); the special-shaped positioning part in positioning fit with the inner wall of the shell is convexly arranged on the outer diameter of the conductor, so that the front side axial positioning of the conductor in the shell is effectively realized, the rear side axial positioning of the conductor in the shell is realized through the sealing cap, and the axial positioning effect of the conductor in the shell is effectively ensured; axial dislocation of the conductor in the shell due to bumping of a vehicle body an