Abstract: With the growing tension of land use,industrial building and apartment blocks have to built in coalmine subsided area in some areas.In the effect of building load,the impaired lock mass may produce major remove and transformation again,even cause unstability and damaged,thus the stability of subsidence areas and the normal use of buildings are affected.It uses geological and mining conditions of choic subsided areas some mine as an example,Firstly,the paper erivates of the expected formula foundation redeformation based on the probability integral method.Secondly,According to affecting factors of foundation the geological and mining conditions,Using numerical simulation and regression analysis methods are used,foundation redeformation calculation of sinking parameter is sured subsided area of under building loads.Finally,combined with the results of numerical simulation,the paper evaluats the stability of foundation subsidence areas of mine by analyzing different load size and loading positions.The impact of foundation deformation is analyzed of load size and load position on the coal mining subsidence area,in the same case of the size of the load,the amount of ground subsidence inflection point of the collapse area and redeformation is larger as central area;three different buildings in the loading position of the inflection point area,edge and central areas,the foundation and resubsidence,and deformation increases with the increase of the construction load.