Support for subway tunnel construction

The utility model discloses a support for subway tunnel construction, which comprises a support bottom plate, adjusting components and an auxiliary component, the support bottom plate is made of metal materials, the adjusting components are mounted at the top end and the bottom end of the support bottom plate, and the auxiliary component is mounted above the support bottom plate. The adjusting assembly is arranged, the driving wheels slide along the subway track, so that the position of the supporting bottom plate can be adjusted, construction of the inner wall of the subway track is facilitated, the stability in the moving process can be enhanced through the auxiliary wheels, the supporting plate is driven to move through the electric telescopic rods, the height of the supporting plate can be adjusted, and the working efficiency is improved. A driving motor is used for driving a transmission lead screw to rotate, the transmission lead screw rotates to drive a lead screw nut to move, the lead screw nut moves