The invention belongs to the field of material breaking and dehydrating processing, and discloses a twin screw breaking and dehydrating integrated processing equipment with a gear pump; the equipment can be used for integrated processing of material friction breaking, extruding and forming, cell wall breaking, and solid-liquid extraction. The equipment comprises a main motor, a transmission belt, a reducing gear mechanism, a first coupling, a cylinder pair, a combined twin screw pair, connecting screws, an upper filtering cylinder fluid collecting device, the gear pump, a gear pump gear pair, a secondary breaking cutter, a forcing feeding spiral, a primary breaking cutter, a forcing feeder cylinder, a second coupling, a forcing feeding motor, a machine head covering plate, an indexing adjustment screw, a damping block, a dehydrating machine head, an auxiliary feeding cylinder, an upper filtering cylinder, upper filtering cylinder filtering plates, a frame, an upper filtering cylinder indexing adjusting mechanism, a support seat, a gear pump motor, a third coupling and an automatic control system. The forcing feeder breaks material primarily. The upper filtering cylinder is provided with two upper filtering cylinder filtering plates. The cylinder pair is provided with two feeding ports and four dehydrating ports, and the dehydrating machine head is provided with one four dehydrating port. Material breaking and dehydrating processing can be implemented efficiently.