In view of the actual on-site problems of serious deformation and destruction of surrounding rock, low construction efficiency, support cost and high labor intensity caused by the use of comprehensive excavating machine for reaming, taking geological conditions and mining parameters of 5307 fully mechanized mining face of Jiaojiagou Coal Mine as background. In this paper, the small section roadway is put forward to carry out the large section hole cutting construction by means of “permanent + temporary” support. Field tests were carried out on 5307 fully mechanized mining face with opening holes. The practice shows that the surrounding rock stability is good during opening holes, the labor intensity of opening holes support is reduced, the construction efficiency is increased by 37.5%, the number of workers is reduced by 33.0%, and significant safety and economic benefits have been achieved. It can provide reference for the opening of fully mechanized mining face under similar conditions.