Temperature controller capable of adjusting temperature

One end of an elastic piece is a tongue-shaped part which inclines upwards, one end of a movable plate is fixedly welded with one end of a bimetal heat sensing body to form an assembly, a through hole is formed in the movable plate, a bent part is arranged at the position of the through hole, and the bent part inclines downwards, penetrates through the through hole of the bimetal heat sensing body and extends to the lower portion of the bimetal heat sensing body. The fixed terminal, the insulated middle shoulder seat, the assembly, the movable terminal, the elastic piece and the insulated bottom shoulder seat are sleeved on a ceramic cylinder of the insulated long cylinder shoulder seat from top to bottom and then riveted on the base in a fixed direction, the lower part of the base is movably connected with the connecting piece, the upper end of the connecting piece is inserted with the ceramic rod, and the lower end of the ceramic rod is connected with the elastic piece. And extends to the upper part of the