Based on fully mechanized caving top coal working face tectonic region fracture zone rib and roof fall problems, through the adoption of advanced grouting reinforcement fracture zone coal and rock jecking technology, ensured the safety and normal of coal cut, moving frame, caving and other technology. The practice showed that the technology effectively prevented the rib and roof fall, reduced the coal loss, achieved good technical and economic results and provided experience and reference for similar conditions.