Abstract: Wenzhou Yongqiang plain has prosperous economy,the development of industrialization and the planless exploitation of groundwater,bringing the subsidence badly,the accumulative total in Yongzhong area exceeds 300mm.For the analysis and forecast in Yongqiang plain,this paper researches the geology environment,groundwater exploitation,groundwater level dynamic characters,and land subsidence monitor data of 2005～2010,to discuss the relationship between the stratum structure and groundwater level,and adopts the annual exploitation and the annual average subsidence speed to forecast accumulative total to 2015.The analysis results will be importance for deeply study in Yongqiang plain.