The invention belongs to the field of plastic production, and particularly relates to a plastic product extrusion granulation machine. The plastic product extrusion granulation machine comprises a stabilizer A, a motor A, a speed reducer A, a base, a feed port, a discharge port, a watering way, a spiral conveying rod, an exhaust way, exhaust holes, a filter screen, a discharge port, a filter screen B, a water tank, a motor A, an adjustment key A, a supporting base, a transmission device, a stabilizer B, a motor B, a speed reducer B, a machine cylinder A, a threaded rod A, a threaded rod B, a machine cylinder B, a granulating machine, a perforated plate, a spiral reamer, a static removal ball A, a static removal ball B, a motor C, a cooling net, a motor D, an adjustment key b, a draught fan B and an air outlet. The base is located below the motor B, the speed reducer B, the machine cylinder B, the motor D, the draught fan B and the discharge port. The supporting base is located between the motor A and the motor B. The machine cylinder A is located above the machine cylinder B. The spiral reamer is located between the perforated plate and the motor C. The static removal ball A and the static removal ball B are located on the spiral reamer.