Based on straight covering thick sandstone and threatening of floor limestone aquifer in mining process of A group 1413A working face in Huainan Mine Area, measures of exploring roof and floor sandstone water, grouting reinforcement of boundary fault waterproof pillar, lift and drag of holder, and deep hole pre-splitting blasting cut top were adopted on the basis of actual geological conditions. At the same time, real time monitoring of microseismic monitoring and analyzing system along with mine hydrology automatic monitoring system was implemented, which realized safety and high effective product.