Boar semen collection device used in pig farm

The utility model relates to the field of breeding technical equipment, in particular to a boar semen collection device used in a pig farm, which comprises a base, a plurality of lifting screw rods are vertically fixed on the base, the lifting screw rods are driven by corresponding lifting motors to rotate, a support is further arranged above the base, and the lifting screw rods are arranged on the support. Lifting threaded sleeves are fixed to the positions, corresponding to the lifting lead screws, of the support, the lifting lead screws are in threaded connection with the corresponding lifting threaded sleeves, a supporting rod is further fixed to the support, an arc-shaped chopping board for supporting boars is arranged above the support, and a supporting pipe is fixed to the arc-shaped chopping board. The support rod penetrates through the support pipe and is rotatably connected with the support pipe, a sliding rod is further fixed below the arc-shaped chopping board, a sliding sleeve is fixed on the sli