The invention relates to a rotating lifting self-positioning platform. A jacking device is fixedly installed on a fixing main frame. A bearing supporting plate is arranged above the jacking device. The bearing supporting plate is connected with the jacking end of the jacking device. A lifting guiding mechanism is arranged between the bearing supporting plate and the fixing main frame. A bearing upper pressing plate is arranged above the bearing supporting plate and is supported through a rotating supporting assembly. A top plate is arranged on the bearing upper pressing plate and is fastened. Rotating groove steel frames are fixed to the two edges of the top plate, and multiple conveying rollers used for supporting and conveying workpieces are installed between the rotating groove steel frames. At least one limiting pillar is arranged. The limiting pillars are vertically arranged. The upper ends of the limiting pillars are fixedly connected to the top plate. The number of limiting plates is twice that of the limiting pillars. The limiting plates are fixed to the center positions of the four edges of the fixing main frame, and each limiting pillar is arranged between two corresponding limiting plates. By means of the rotating lifting self-positioning platform, the requirement for rotating the workpieces by 90 degrees on an assembly line can be met, safety and reliability are achieved, running is stable, operation is convenient, the labor intensity is reduced, and the production efficiency is improved.