The invention discloses an electro-hydraulic control multi-cylinder linkage bending machine which mainly comprises oil cylinders, wall plates, connecting beams, an oil tank, sliding blocks, a workbench, a mould, a hydraulic system, an electrical system, a numerical control system and the like. The single equipment comprises one hydraulic assembly and two synchronous blocks; two grating scales are respectively arranged on two sides of the machine; the synchronous operation of the sliding blocks is detected, data is fed back to the numerical control system, and four oil cylinders are controlled by servo valves to bend synchronously downwards. Due to the adoption of the device, the cost of the materials needed by the synchronous bending of two cylinders is saved greatly, the product bending effect is improved, and the difficulty of purchasing the raw materials (steel) is reduced.