Abstract: Based on the deep analysis of the mining practice of extra-thick soft coal seam with large inclined angle, according to the actual situation of No.5 coal seam in Wenming Mine, the article determined the reasonable support structure and working strength. It determined the reasonable traction power of the shearer by calculating the traction force, and proposed reasonable sliding prevention technical measure of scraper conveyor by analyzing the transport capacity and repair needs of scraper conveyor.