Abstract: Huayuan coal mine uses main shaft to realize efficient transport of solid material from groud to underground,and the combined operation of coal transportation and material transportation.Due to the original loading chamber can not meet the discharge requirements,the reconstruction of main shaft loading chamber has become the key to solve filling mining.Huayuan coal mine uses section construction method which has better construction effect and obvious economic benefits.The successful reconstruction of main shaft loading chamber provides important technical reference for gangue backfilling and has significance for the development of materials transportation ways of fully-mechanized soliod filling mining.