Abstract: As cracks in tunnel lining, and atmospheric precipitation recharge of groundwater, the tunnel often appears a lot of water, water leakage in severe cases, and rock fall happens from time to time, which brings threat to the mine safety transportation. Therefore, this paper takes tunnel of Shanxi Tiandi Wangpo Coal Mine as engineering practice, uses grouting water plugging technology, according to different water conditions to adopt effective plugging measures, and to improve grouting technology and equipment, which effectively suppresses the tunnel water gushing, water percolating capacity decreases significantly, the grouting effect is remarkable.