Abstract: Based on Guojiahe extra-thick coal seam mining process, roadway deformation near the goaf side was seriously. The paper, taking the roadway deformation in return airway of 1305 working face as engineering background, carried out working face roadway surrounding rock deformation observation and monitoring mining stress field in advancing. The research results show that: with the working face going deep into 1303 gob, the return airway side deformation rate increases 3 to 5 times；compared to the belt roadway, the return airway side abutment pressure peak to the distance from the working face and the solid coal is decrease, the stress concentration factor is up to 3; the reason of roadway large deformation in return airway of 1305 working face is multi-factor coupling effect mining stress, goaf lateral abutment pressure and lateral roof structure. In view of the roadway deformation reason on gob side, we propose lateral roadway roof blasting deep hole broken and small coal pillar roadway protection measures.