Abstract: To improve the recovery rate of coal resources, reduce the excavation amount of roadway, relieve intense mining situation, we proposed gob-side entry retaining technology formed by roof cutting pressure relief in jiaozishan Coal Mine. Theoretical calculation and numerical study of blasting pressure relief mechanism reveals the activity laws of surrounding rock with gob-side entry retaining formed by cutting roof pressure relief, and 4 meters blasting presplitting depth is determined. And the final supporting schemes is " blasting presplitting of the roof + single anchor strengthening + hydraulic prop with articulated roof beam + precast concrete block". Practice shows that the technology is successful, and the economic and social benefit is significant.