Subway station floor trolley support system with freely adjustable position and height

The utility model discloses a subway station floor trolley support system with freely adjustable position and height, which comprises a walking subsystem, a supporting subsystem, a power subsystem, a connecting subsystem and a formwork supporting subsystem, and the walking subsystem comprises a plurality of walking rollers; the supporting subsystem comprises a plurality of groups of supporting frames; the power subsystem comprises a plurality of jacks; the connecting subsystem comprises a plurality of single connecting rods and a plurality of double-connecting-rod assemblies. The formwork supporting subsystem comprises a plurality of side wall formwork supporting plates and a plurality of floor formwork supporting plates. One end of one single connecting rod is fixedly connected with one group of supporting frames, the other end of the single connecting rod is fixedly connected with the other group of supporting frames, and the single connecting rod is used for connecting the pair of supporting frames; the do