7614 filling face in Xingtai Mine, filling the role of body support postharvest roof appeared, the roof remained relatively intact. On this basis, 7614 filling face conducted the top network technology test study, based on the inner face of the roof appeared intact state and the pressure situation, predictability expanded or reduced the scope of rejection network, which effectively reduced production costs and improved filling face productivity. The success of the project provided a reliable technical basis for the future wider application filling face rejection roof metal mesh technology.