An adaptive rotating and clamping mechanism disclosed by the present invention comprises a first connecting plate, second connecting plates, clamping blocks, limiting blocks, a first briquetting, a second pressure rod and a rotating base. The first connecting plate and the first briquetting are connected, the clamping blocks are arranged at the two sides of the first connecting plate relatively and are connected with the first connecting plate rotatably, and the limiting blocks are arranged at the two sides of the first connecting plate relatively and are connected with the first connecting plate rotatably. The clamping blocks are arranged above the limiting blocks, the rotating base is arranged between the limiting blocks, and the limiting blocks are connected with the rotating base rotatably. The second connecting plates are arranged at the two sides of the second pressure rod, the clamping blocks and the limiting blocks relatively and are connected with the second pressure rod, the clamping blocks and the limiting blocks orderly from top to bottom, and the second connecting plates, the limiting blocks and the rotating base are connected coaxially and rotatably. The second connecting plates and the clamping blocks are connected rotatably, and the connection points of the second connecting plates and the clamping blocks are arranged above the connection points of the first connecting plate and the clamping blocks. The adaptive rotating and clamping mechanism of the present invention can avoid the easy wear and aging problems caused by using the rubber to clamp, and enables a debugging cycle to be shortened.