The invention discloses a mining method for a hanging-wall broken and inclined thin-medium thick ore body and belongs to the technical field of underground mine mining. The mining method comprises thesteps that blocking, sectioning and layering mining is conducted on the hanging-wall broken and inclined thin-medium thick ore body; bottom pillars, middle pillars and top pillars are reserved in oreblocks, sectioning middle pillars are reserved in sections, and irregular ore pillars are reserved in layers; mining is conducted in layers, before mining, anchor rod roof supporting operation is implemented, ore parts broken every time are drawn through artificial ore-pass, and residual most ore is leveled and then serves as a next layering stoping platform; and after stope ore breaking work iscompleted, ore-drawing hoppers are excavated in the bottom pillars to conduct work of drawing of the large amount of ore. According to the mining method, on the basis of a traditional shrinkage methodmining technology, through arrangement, it is ensured that the hanging-wall ore body is stable enough, and the dilution rate of the ore is decreased when the large amount of ore is drawn.