Reasonable roadway support is the premise of safe mining, based on the geological condition in 5209 air return roadway of Madaotou Mine, the difficulty of roadway support was analyzed, the combined anchor bolt and mesh support and its principle were given. Combined with the site enginnering, the combined support enables to control the convergence of two sides and between roof and floor, make sure the stability and integrity of roadway, providing refence for similar condition.