With the increasing increase of coal mining, margin coal mining turned out to be one of the issues paid attention to. How to improve the mechanization degree of margin coal mining became the focus of research. In this paper, the support transformation technology of the 13503 outer working face of Gequan Mine of Jizhong Energy Group was carried out. By adopting the adaptively modified integral top beam combination to suspend the hydraulic support to meet the needs of corner coal mining and improve the safe mining, the technology improved the mining efficiency, provided strong technical support and experience for domestic coal mining, with certain promotion value.