The rainstorm is one of main disastrous weather in Chongqing.Itinduces mountain torrents,debris flow,landslide etc.directly or indiectiy.The research of rainstorm’s law is significant to these disaster’forewarn,prevention and alleviation.According to Chongqing meteorological data and disastrous data from 1951a to 2000a,in terms of the way of harmonic etc.,the paper analyses the space-time law of rainstorm.After that,the authors discuss its characterics,types and disaster chain.Finally,some preventive countermeasures have been given.%暴雨是重庆市的主要灾害性天气之一,它直接或间接诱发山洪、泥石流、滑坡等山地灾害,研究暴雨规律对山地灾害预警和防灾减灾具有重要意义。本文依据重庆市1951～2000年的气象资料和灾害资料,采用谐波分析等手段分析出重庆市暴雨的年内、年际等时间分布规律和地域、城乡、迁移等空间分布规律。进而探讨了暴雨灾害特点、类型及灾害链,并提出了防治对策和措施。
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