The invention relates to a controllable elevated working platform which comprises a platen and supporting legs. The supporting legs are mounted on the bottom surface of the platen through hinges in a foldable mode. The platen comprises a first platen body and a second platen body which are hinged through hinges. Locking mechanisms are arranged at the folding position of the first platen body and the second platen body. Each supporting leg comprises a first supporting leg body and a second supporting leg body. Each second supporting leg body is inserted into the corresponding first supporting leg body from bottom to top in a telescopic mode. Each first supporting leg body and the corresponding second supporting leg body are provided with matched slotted holes. Positioning screws are arranged in the slotted holes. The positioning screws sequentially penetrate through the slotted holes in the first supporting leg bodies and the second supporting leg bodies and are fastened through nuts. The working platform is made of firm, light and corrosion-resistant materials and is foldable and convenient to carry, the space occupancy can be reduced greatly, the working efficiency is improved, unnecessary labor force waste is avoided, and overhaul quality is promoted.