Abstract: During the deep mining activity, the energy accumulation often occurs in fold limbs affected by the mining, there are potential dangers of rock burst with the impact of human-induced. Through the analysis of the strong mining-induced seismicity during the mining activity in folding structure, the reason of energy accumulation in syncline structure is studied by using rock mechanics, and it can provide a reference for the rock burst control by analyzing mechanic causes and mechanism of rock burst. The analysis results shows that, the vertical and horizontal stress in fold limbs belong to the compressive stress, and the stress concentration degree in fold limbs is higher than usual, higher energies accumulate here; the energy in coal and rock of mining effect region has the fluctuating trend with time.