Abstract: In order to improve the recovery rate of coal resources, increase mine efficiency, and promote mine safety production, it is decided to implement the technology of cutting top unloading along the empty lane at the 4⁻⁴103 working face. The reasonable cutting height and cutting top angle of 4⁻⁴103 working face were determined by numerical simulation, and the roadway support scheme and blasting parameters were proposed. The on-site measurement results show that the surrounding rock of the roadway has less deformation, and the roadway support method has a significant effect, which ensures the stability of the surrounding rock along the empty roadway of the coal mine cutting top unloading in the sea.