Provided is a sucker rod atomizing oil spraying device. The sucker rod atomizing oil spraying device comprises an engine oil supply system, an engine oil atomizing system, an oil storage system, and an electrical equipment control system. The engine oil supply system comprises an auxiliary oil tank, an overflow pipe, an oil supply pipeline, and an oil pump. The engine oil atomizing system comprises an atomizing tank, a pressure regulating valve, an atomizer, an oil pipeline, an air pipeline, and a switch valve. The oil storage system comprises an oil return pipeline, a filter net, a main oil tank, a division plate, a settling chamber, and an oil storage chamber. The electrical equipment control system comprises a proximity switch, a magnetic valve, a time relay, and a voltage relay. The sucker rod atomizing oil spraying device can atomize waste engine oil and spray the atomized waste engine oil on the surface of a sucker rod evenly so that the anticorrosion ability of the sucker rod is renovated and improved, the renovation quality of the sucker rod is improved, the quality requirement of the operation and production of the sucker rod is achieved, oil well pump abrasion or a stuck pump accident which are caused by corrosion of the sucker rod is reduced, operation success rate is improved, the service life of the sucker rod is prolonged, and production cost is reduced.