Abstract: Based on geological environmental conditions of Lengshuijiang tin mining area, combined with the distribution characteristics of mining subsidence area, the monitoring points and monitoring facilities for surface deformation, strata inside, surface and building cracks are arranged. Through the analysis of the monitoring data, the applicable scope, advantages and disadvantages of the existing monitoring equipment in the study area are compared and analyzed, and the monitoring network and monitoring frequency are optimized, then the general idea of the layout of the same kind of mine monitoring network is put forward, and the reference basis for the development of geological environmental monitoring in the same kind of mine is provided.