On the base of owning plenty of Chinese mountain torrents disaster investigation data

this paper first analyzed Chinese mountain torrents disaster actuality

causing-factors and spatial-temporal characteristic

then divided Chinese mountain torrents disaster prevention region into three types which named the first emphasis prevention region

the second emphasis prevention region and the generic prevention region. In the end

taking into accounting of existed natioral regionalization results and considering mountain torrents disaster sub areas characteristic

this paper studied the rule

method and basis of Chinese mountain torrents disaster and brought forward the regionalization system.