The invention discloses a disc-shaped performance stage capable of changing into spherical surface from plane, comprising a central stage (32) and a plurality of stage unit structures (31) arranged around the central stage, wherein each stage unit structure comprises a group of sector units (31a, 31b and 31c) and a lifting device; the sector units are arranged along a straight line, and adjacent sector units are mutually connected; the lifting device is arranged on the lower part of the sector unit to support the sector unit and cause the sector unit to rise and lower; the lifting device is abridging device (34a, 34b and 34c); the lower part of the bridging device is supported on the ground, and the upper part is connected with the end of the sector unit. The performance stage of the invention can be quickly spliced into a large round stage before performing, can change the stage between the spherical surface state and the plane state in the performing process so as to satisfy the requirements of stage performances and can be quickly installed, positioned, removed and transported after performances end.