The invention provides a hydraulic pushing new-energy-source power generating device, which comprises a press plate vehicle, a hydraulic power generator and a fixing frame, wherein a plurality of transmission elements are sequentially distributed on the fixing frame, each transmission element comprises an oil pump body arranged on the fixing frame, and the plate pressing vehicle conveys hydraulic oil of an oil pump body to the hydraulic power generator for hydraulic power generation in a mode of enabling the press plate vehicle to do downwards pressing action through pressing a piston rod of the oil pump body. The plate pressing vehicle is adopted for conveying hydraulic oil of the oil pump body to the hydraulic power generator for hydraulic power generation in a mode of enabling the press plate vehicle to do the downwards pressing action through pressing the piston rod of the oil pump body, the oil pump body can be assembled and arranged on a motorway or a downhill pavement, the self power generation is realized through using the normal running of a motor vehicle on the motorway, the energy source utilization effect is high, and no pollution, cleanness, simple structure, safety and reliability are realized.