The utility model relates to the technical field of table and chair sets, and discloses a stainless steel table and chair set with folding and unfolding functions, which comprises a supporting base, a first connecting block and a cleaning component, a connecting seat plate is fixedly connected in the supporting base, a supporting clamp is arranged at the top of the supporting base, a supporting clamp is arranged in the supporting clamp, and the cleaning component is arranged in the supporting clamp. The cleaning
assembly is arranged in the supporting table top, the first connecting block is fixedly connected to the supporting base, an adjusting support is rotationally connected into the first connecting block and fixed to the bottom of the supporting table top, and a second connecting block is fixedly connected to the bottom of the supporting table top. The supporting table top rotates to drive the sliding limiting blocks and the rotating supports to be adjusted, so that the adjusting supports move to the outer portion of the supporting base to achieve storage deformation, the occupied space can be reduced through storage, flexible planning and using of the space are guaranteed, and the device is convenient to store, carry and store; and the storage difficulty and cost are reduced.