At present

the formation

evolution and simulation of spatial structure of village and small town are becoming the focus in the fields of geography

planning

remote sensing science

geographic information science and other related disciplines

which also receives the close attention of the management.In this study

we take Xianghe County of plain

Miyun County of mountainous area and Kunshan City of aqueous area for examples where characteristic analysis of village and small town spatial structure is carried out.The location and spatial scope models of village and small town based on grid are established

which is carried out with the help of GIS spatial analysis and modeling technology.In addition

according to Tyson polygon model

a new idea is brought forward that the spatial range of village and small town is determined by land-benefit instead of distance.The two models can provide reference for location and scope determination of village and small town because the factors are more comprehensive and more specified.This research can provide help for the planning of village and small town.