<p>The frequent occurrence of strong mining-induced earthquakes has seriously threatened the safe and efficient production of deep coal mines. Hard rock strata is one of the main factors inducing strong mining-induced earthquakes. Taking the mining under hard rock strata of Dongtan coal mine as a background, combining the microseismic monitoring and theoretical analysis methods, we propose the method of collaborative control of the far- and near-field hard rock strata by ground hydraulic fracturing and underground deep-hole blasting. We investigated the mechanism and control effect of weakening the far- and near-field hard rock strata, which is verified by field experiments. Results show that after field experiment, the far- and near-field rock strata have been effectively weakened or broken, resulting in the loss or partial loss of its bearing capacity, releasing the elastic energy accumulated in the rock strata. The percentage of strong mining-induced earthquakes reduces by 54.4%, and the average depth of the epicentre decreased from 187.5 to 151.9&#xa0;m. The problem of frequent occurrence of strong mining-induced earthquakes has been effectively solved, which ensures the safe mining of the subsequent coal seams. The implementation of field experiment could reduce or eliminate the occurrence of hazardous mining-induced earthquakes with large energy, and the frequency of strong mining-induced earthquakes is significantly reduced. It provides a certain reference for solving the control of strong mining-induced earthquakes caused by similar hard rock strata fracture.</p>