Abstract: Taking the supporting problem of soft rock haulage tunnel at 2^# coal in Chagannaoer Coal Mine as the study object, mechanical parameters and mineral components of the soft rock were tested, deformation characteristics and failure mechanisms of the high expansibility soft rock roadway were analyzed, and the existing problems in the original support technology were summarized, a supporting method with concrete-filled steel tuber support for the repair of roadway was put forward. Experience has proved that the supporting method was effectively solve the problem of stress concentration, the supporting intensity could meet the requirements, achieved good technical and economic effects.