The width change of coal column parameters affects ground subsidence control effect, 16E108 working face of Jisuo Mine was taken as engineering background, the width of coal column was set as 8、10 、12 m by numerical simulation, parameters of vertical migration quantity, surface incline and subsidence of each plan were analyzed. The result showed that ground vertical subsidence, level deformation(absolute value), inclination, curvature decrease as the increasing of width of filling strip, which provides reference for reasonable parameters settlement for coal column.