Construction auxiliary platform

The utility model provides a construction auxiliary platform, and relates to the technical field of tunnel construction. The construction auxiliary platform comprises a supporting table, a driving shaft, a connecting assembly, a lifting plate and universal wheels. A first containing cavity is formed in the supporting table. The driving shaft is rotationally arranged in the first accommodating cavity; the connecting assembly comprises a sliding block and a connecting rod, and the sliding block is movably arranged on the driving shaft; the other end of the connecting rod is rotationally connected with the lifting plate; the universal wheels are arranged on the side, away from the driving shaft, of the lifting plate. The driving shaft is used for driving the sliding block to move, so that the sliding block drives the lifting plate to ascend and descend in the first containing cavity through the connecting rod, and then the universal wheel is contained in the first containing cavity. After the construction auxili