A mountain torrent disasters prevention regionalization is the basis of preventing mountain torrents disaster. This article selected Shaanxi Province as an example to discuss the whole of dividing provincial torrent disaster prevention region. According to certain regionalization rules, in consideration of the different features of nature and society in Shaanxi Province, the Shaanxi Province mountain torrent disaster regionalization was completed by integrating the production of rainfall, terrain and economic regionalizations and adopting “from above to bottom” and “from bottom to above” regionalization methods. This progress result provided a reference to provincial mountain torrents disaster prevention programming regionalization.