The invention provides a cerebrospinal fluid drainage apparatus, which comprises a drainage tube, a liquid storage bottle and an air pump, wherein the near end of the drainage tube, the liquid storage bottle and an air inlet of the air pump are sequentially connected by virtue of pipes; the liquid storage bottle can be used for accommodating liquid; and the liquid, at least before the liquid storage bottle is full of the liquid, is prevented from flowing into the air inlet of the air pump. According to the cerebrospinal fluid drainage apparatus provided by the invention, a cerebrospinal fluid drainage rate can be controlled in an entire operation, so that brain tissue injury caused by too quick decompression of cerebral ventricle is prevented.