Abstract: Based on the characteristics of surrounding rock in a soft and thick coal seam roadway along gob area coal mine,the stability of like continuum in top coal and supports with various loading conditions are respectively studied by theoretic knowledge,and the status of stress-distribution and deformation and that of breaking of surrounding strata of the roadway with various supporting conditions are simulated and supporting parameters optimized,and the reasonable control measures are proposed,thich is the technology of U-steel supports and bolting-grouting-filling(in the top area of roadway).The in-situ testing results show that the combined supporting technology can satisfy the requirement of engineering,and good economic and social profits have been achieved.