Abstract: The Lushan earthquake caused the serious influence to forest animals in Tianquan County.Studieds were made of the habitat factors of Euprepiophis perlacer for its potential distribution and conservation of its tiny population.Different habitats from Tianquan,Baoxing,Shimian and Mabian County were analyzed and compared through on-the-spot investigating Euprepiophis perlacer resource distribution.According to the similar habitat theory,the main habitat factors (>30%) of Euprepiophis perlacer were preliminarily selected for the suitable ecological habitats of Euprepiophis perlacer in Tianquan,which would contribute the operational and practical technology for tiny popuation protection and recovery and the establishment of the artificial population of Euprepiophis perlacer in Tianquan.