Abstract: Statistical analysis is a basic method to study the spatial distribution of earthquake induced geo-hazards. Many scholars have analyzed spatial distribution characteristics for the earthquake induced geo-hazards by selecting different evaluation indexes. Among all of these indexes, the hazards number and hazards number density are unreliable until field investigation to confirm the accuracy of the hazards data. Thus, this paper presents a method to study the spatial distribution law of earthquake induced geo-hazards in the Baisha river basin of Dujiangyan county by using three parameters. They are Pa, Ph and Pn. They can reduce the negative influence of geo-hazards numbers. The statistical results show that this method is simple and effective for revealing the general characteristics of hazards distribution and more information about hazards scales. In addition, the method uses a new index C to measure the extent of ground damaged in small watershed. Findings are as follows. The main distribution area of geo-hazards is not equal to the zones damaged worst. The main distribution area of seismic induced geo-hazards is 30～50 in slope gradient, 1540～2740m in slope elevation, and E-SW in slope aspect. By the contrast analysis of this results and other scholars' statistical results, it can be found that the distribution area exists upper limit in slope gradient and elevation, 50 and 3000m respectively. Besides, the main distributed slope aspect is closely relate to the strike direction of Beichuan-Yingxiu Fault, but there is no back-slope effects in Baisha river basin. The distribution of geo-hazards is less relates to the stratum lithology.