Abstract: The steeply inclined close-distance coal seam group with a dip angle greater than 60 ° and a single layer thickness of 5-10 m is a restricted area for fully mechanized mining technology, and technical innovation is urgently needed. Based on the engineering background of the steeply inclined close-distance coal group in Tianshun Coal Mine in Xinjiang, based on the cross-layer linkage instability characteristics of the chain structure of the sur-rounding rock of the composite stope, this paper proposes a feasible scheme for the combined mining of the steeply inclined close-distance coal group, and determines the optimal scheme through the scheme comparison method. A comprehensive research method combining physical similarity simulation, numerical calculation and theoretical analysis was used to systematically analyze the mechanism of the combined effect of sublevel height and coal drawing process on the safety and productivity of the working face. The double index evaluation method of stress release rate-plastic distribution degree of the top coal and rock drawing body were established. The reasonable section height was determined, and the coal and rock drawing characteristics of different coal drawing directions and sequences were revealed. The coal drawing process was optimized and verified by industrial tests. The results show that with the increase of segment height, the stress release rate and plastic distribution decrease. When the segment height is 25 m, the pressure relief failure degree of coal and rock between segments and the productivity of working face reach the optimal balance. The stress release rate and plastic distribution are 46.25% and 42.92% respectively. The coal and rock have good caving ability and high economic benefit, which is the optimal segment height. The coal caving from the roof side to the floor side of the working face can effectively reduce the phenomenon that the advance migration of the interval rock layer under the coupling of gravity and dip angle can block the coal caving channel and the advance flow of the coal body on the roof side to the top of the goaf, which is 5%−8% higher than the coal caving rate from the floor side to the roof side. Under the same condition of coal drawing direction, the drawing rate of multi-wheel interval coal drawing is 0.2%−3.2% higher than that of multi-wheel sequential coal drawing, and the coal drawing process of multi-wheel interval coal drawing from roof to floor is selected in the working face. The field industrial test shows that there is no strong mine pressure during the mining period of the test working face, and the recovery rate of coal rock can reach 85%, which realizes the safe and efficient mining of the steeply inclined close distance coal group, and has reference significance for the mining of similar coal seams.