The invention discloses an LNG natural gas station power generation device based on wind power generation, solar power generation and temperature difference power generation. The upper part of the device is provided with a solar panel and a solar cooker which are coated with anti-corrosion layers, the solar cooker is located on the other side of a fixing device, and a temperature difference powergenerator is connected with the solar cooker; the cold end of the temperature difference power generator is provided with two inner cavities, the middle of the device is provided with a storage battery, the two sides of the storage battery are each provided with a power generator, the periphery is surrounded by telescopic plastic, a fan is arranged on the outer side, and a lower base is connectedwith the solar panel and the fixing device for the solar cooker through telescopic rods; and the solar panel, the temperature difference power generator and a wind power generator are all connected with the storage battery through circuits. The LNG natural gas station power generation device can comprehensively utilize wind energy, solar energy and temperature difference power generation and is environmentally friendly and sufficient in generated power. The LNG natural gas station power generation device in the scheme has the beneficial effects that the structure is simple, the design is reasonable, assembly and disassembly are easy, energy saving and consumption reduction are achieved, and the applicability is wide.