USE OF 5a-ANDROSTANE (ALKYL)-3(3,5,613-TRIOL IN PREPARATION OF NEUROPROTECTIVE DRUGSABSTRACTDisclosed is the use of 5a-androstane(alky1)-313,5,63-trio1 in preparing neuroprotective drugs. The compound has significant protective effect against neuron injuries caused by cerebral ischemia, spinal cord ischemia or hypoxia and has no obvious toxic reaction within effective dose thereof.