Caving mining cut was large span roadway that equipped with stent, scraping machine, mining machine equipment, construction technology was complex, was the focus of the mine roof control. Based on 22106 fully mechanized face of wangzhuang coal mine geological conditions, Wangzhuang coal mine used the quick test of geological mechanics equipment on the basis of fully mastering the engineering geological conditions of roadway, the numerical simulation software FLAC, and the parameters of the roadway supportting 22106 fully mechanized cut reasonable selection. Engineering practices showed that the design of anchor wire rope supporting parameters can better satisfy production.