(1 Structure Engineering Lab, Chongqing Jiaotong University, No.66 Xuefu Road Nan’an District Chongqing China ,China,400074) (2 School of Civil Engineering & Archtecture, Chongqing Jiaotong University, No.66 Xuefu Road Nan’an District Chongqing China ,China,400074) Abstract: This paper based on GIS land suitable assessment principle and method, use supermap to analysis suitability of crop land ...