In order to solve the severe succession of mining in Laomupo Mine, improve the coal resources recovery rate, extend the serving years of the mine, gob-side entry technology was applied in No. 2 coal seam of Laomupo Mine, roadway surrounding rock reinforcement control technology, dynamic construction technology, FLAC nermerical simulation optimizing support design during mining, strengthening the mine pressure monitoring, the stress and deformation characteristics of support body were analyzed, the mechanism of roadway support group was got, which formed single hydraulic prop with cross articulated roof beam, composite iron shoes, joist steel combined support body, met the needs of expected result of roadway retain effect.