Abstract: According to the geological conditions of 1^-2 upper coal seam in Bu′ertai Coal Mine , the technology of plough mining in thin coal seam is proposed. The feasibility analysis of plough mining in 1^-2 upper coal seam is carried out, the plough mining is suitable for 1^-2 upper coal seam; the technology of plough mining in thin coal seam is studied, the equipments and the mining technology are defined; the technology of plough mining in 1^-2 upper coal seam can acquire good economic and social benefits.