The invention discloses a catheter device special for the neurosurgery department. The device comprises a catheter and a sucking pump. A suction hole is formed in the side surface of one end of the catheter, an external thread is arranged on the peripheral side surface of the other end of the catheter, and a switch is arranged on the side surface of the sucking pump; the input end of the switch is electrically connected with the output end of an external power supply, the input end of the sucking pump is electrically connected with the output end of the switch, and the air suction end of the sucking pump is communicated with a liquid suction pipe; a movable bolt is movably connected to the outer side of the liquid suction pipe in a sleeving mode, the movable bolt is connected with the catheter through an external thread, and a limiting ring matched with the movable bolt is arranged on the outer surface of the liquid suction pipe. According to the catheter device special for the neurosurgery department, the sucking pump capable of being disassembled and assembled is used for assisting in sucking out drainage liquid, drainage of the drainage liquid is greatly facilitated, the influence on the operation process is reduced, and the health of patients is benefited; the liquid suction pipe is connected with the catheter through the movable bolt and convenient to disassemble and assemble, disassembly and assembly can be carried out according to use requirements, and flexibility is high.