Abstract: The micro habitat of a collapse mountain in the Wenchuan earthquake area were divided into gravel slope,rock slope,gravel land,lacuna earth and groove earth in this paper. Based on the type of division of micro habitats,the resilience of natural vegetation of micro-habitats was measured by use of plant diversity. The results showed that the index of plant diversity could reflect the differences in vegetation rehabilitation of micro habitats,and the index of resilience of natural vegetation was as follows:groove earth > lacuna earth > gravel land > rock slope > gravel slope. This responded objectively to the present vegetation natural restoration in different habitats,and measured results would provide reference for taking different measures to restore the vegetation of the disaster area.