Aiming at rock burst of roadway 5931face 8931coalseam No.11Panel 309in Xinzhouyao coal mine, according to relevant geological conditions, the pressure-relieving groove was excavated on roadway floor, and devices were set so as to observe the press and displacement of roadway. Observation results show that the pressure-relieving groove is beneficial to risk reduction of rock burst and can increase economic and social benefits of enterprise.