The utility model discloses a lining support structure for tunnel, the on -line screen storage device comprises a base, be equipped with connecting device on the base, the upper end of base is equipped with the fixed slot, the lower extreme of fixed slot is equipped with and rotates the groove, the bottom of rotating the groove is fixed with two second fixed plates that are parallel to each other,and one side of two second fixed plates is all rotated and is connected with first fixed plate, and the upper end of two first fixed plates is fixed with first sleeve pipe jointly. The utility modeldiscloses an it is tight and fixed to the clamp of steel bow member, keep the steady of steel bow member, to solve general constructor and carried out the durable inadequately of after the ligature easy ligature that appears of welding, the welding back is easy to be appeared crookedly, is not conform to the emergence of the condition such as construction requirements, does over again, loses timeand energy, causes the potential safety hazard scheduling problem, has reduced the emergence of the condition of doing over again, has improved work efficiency, and simple structure conveniently operates, the suitable popularization.