Abstract: Based on the detailed analysis of deformation characteristics and the main influential factors, deep roadway surrounding rock double shell support theory is proposed. It is thought that through the support for the shallow roadway to form the external stress supporting shell and the reinforce of deep roadway to form internal stress reinforcing shell will form a supporting system which can effectively reduce the scope of the damage of surrounding rock of roadway, cut off the propagation of deep high ground stress, maintain the stability of roadway surrounding rock and the formation of roadway. The double shell roadway surrounding rock supporting system is built, which is constituted by single shell support, continuous double shell support and discontinuous double shell support according to different breakage scopes of roadway. In the meantime, the double shell supporting mechanism of roadway surrounding rock is analyzed, and the key technology of double shell supporting in the deep roadway is researched and developed. Taking the deep roadway repair engineering of Tao'er Coal Mine as an example, the rationality of the double shell supporting in deep roadway is verified.