Abstract: In order to solve the problems of 824 inside working face in the Qingdong coal mine, the loose blasting technology was applied, and the ideal result was achieved. According to the geological and production conditions of working face, the parameters of loose blasting and technological process were obtained. The results showed that the loose effect produced by loose blasting was excellent, while the coal and rock mass were fully pre cracked and loose. The loose blasting was conducive to the coal mining machine passing through the fully mechanized mining face smoothly and quickly, without excavation and cutting again to continue to continue mining. The successful application of this loose blasting technique provides a useful technical experience for the engineering application of the similar hard coal fully mechanized mining face passing through fault.