Abstract: In response to the problem of serious deformation in the mining roadway of the isolated island working face, which is easily affected by multiple mining operations, the deformation and fracture characteristics of the surrounding rock of the isolated island working face mining roadway are analyzed using the 3206 return air roadway of Wangpo Coal Industry as the research object. The drilling and peeping method is used to analyze the deformation characteristics of the surrounding rock of the isolated island working face mining roadway, and it is pointed out that the original anchor mesh cable support cannot effectively control the deformation of the surrounding rock of the roadway, A combined support method of "full anchor cable+steel ladder beam+shotcrete" has been proposed. The on-site application results show that the maximum displacement of the roof and floor of the tunnel is 186.97 mm, and the maximum displacement of the two sides is 288.24 mm, proving that the optimized support method effectively controls the deformation of the surrounding rock of the roadway.