The invention discloses a two-sided dewatering upper squeezing belt filter press for a wedge-shaped pressurizing sawtooth groove. The two-sided dewatering upper squeezing belt filter press mainly comprises a rack, a squeezing region, a drive device, a feeding and pulp spraying device, a wedge-shaped pressurizing sawtooth groove two-sided dewatering plate, a rotary dewatering device, a scraper discharging device, a correcting device, a pneumatic tensioning device, a water spraying cleaning device and a water receiving tank device. The wedge-shaped pressurizing sawtooth groove two-sided dewatering plate is divided into an upper filter net and a lower filter net, an included angle being greater than 0 degree and less than 3 degrees is formed between the upper filter net and the lower filter net, a wedge-shaped pressurizing sawtooth groove two-sided dewatering feeding hole is larger than a discharging hole, the pressurizing is achieved according to operation of the filter nets, the two-sided dewatering effect is achieved according to the sawtooth groove and a circular hole of the dewatering plate, the drive device comprises a motor and a gearbox, so that the dewatering effect is greatly improved; meanwhile, the service life of a filter strip can be effectively prolonged, and the operation energy consumption of the filter press can be reduced.