In order to solve the gas management problem of strongly protruding fragmented soft coal seam in Yangquan area, a field test was conducted in the 15205 mining working face of No.15 coal seam by using directional long-drill hole regional gas management technology with Shangshe Mine as the research background. The test showed that the gas extraction concentration as well as the pure amount of gas extraction in long distance drilling were improved substantially compared with normal drilling. When the depth of directional borehole was increasing and the number of branch boreholes was increasing, the gas extraction concentration and pure gas extraction volume of long distance borehole decreased. After 90 d of extraction, the average gas extraction concentration of the borehole was stabilized at about 35%, the average pure gas extraction volume was 0.29 m3/min, and the average gas extraction volume of 100 m borehole was 0.039 8 m3/min.