To study adult body surface area,3D digital anthropometric measuring technology has many obvious advantages,comparing with the traditional measurement methods.This article uses a new formula Calculating body surface area in order to obtain Chinese adult body surface area parameter,and effect of geographic factors on the adult body surface area was analyzed.2219 students' height and weight who come from Central South University were collected,and Chinese adult body surface area parameter was calculated,using this new formula.We have examined the one-way ANOVA of Geographic factors,and found that geographical factors affect body surface area significantly.At last,districts were ranked according to the adult body surface area,and certain characteristics are found.