Aimed at ATM setting up in center district of Lanzhou, by software Arcgis, downtown Lanzhou distribution characteristic of ATM network is explored in combination of qualitative description and quantitative analysis.The results show that there are some characteristics of uneven distribution, high degree of centralization, high consistency of distribution, population density and road systems.Finally, using SPSS17.0 to analyze the survey data with the method of stepwise regression, the quantitative linear interconnect between ATM distribution and the 3 main factors.The conclusion show that there is linear regressive interconnect between population density, roads density and ATM distribution.The higher density of population and roads, the more ATMs there are.There is obvious linear relation between business prosperity degree and ATM distribution.There are more ATMs in prosperous area.Finally, the multiple regression model of ATM number and the main factors is obtained.