Regarding the problems of high maintenance cost, long construction period, and high safety risk of reused roadways under the "U+U" ventilation mode in high-gas mine mining faces, taking the mining of No. 3 coal seam in Wangpo Coal Industry as the engineering background, this paper systematically analyzes the deformation mechanism and control principles of reused roadways, and proposes a new layout scheme for special gas control roadways. Through the theoretical calculation of Wilson's nuclear zone stability and FLAC3D numerical simulation, the rationality of a 15m coal pillar is demonstrated, and a trinity surrounding rock control technology of "active support-cutting pressure relief-dynamic adjustment" is proposed. Industrial tests show that driving special gas control roadways can effectively avoid the adverse effects of reused roadway maintenance, and has obvious advantages in construction period, safety guarantee, economic efficiency, etc. The research results establish a collaborative optimization theory of "roadway function-coal pillar width-support parameters" for high-gas mines, providing new ideas for safe and efficient mining in similar mines.