Lubricating oil system

The invention discloses a lubricating oil system. The lubricating oil system comprises a lubricating oil pump, a secondary heating system and a heat dissipation system. The input end of the secondaryheating system is connected with an oil supply level outlet pipeline of the lubricating oil pump, and the output end of the secondary heating system is used for being connected with an accessory gearbox through a pipeline. The heat dissipation system is connected to the pipeline between the output end of the secondary heating system and the accessory gearbox. According to the lubricating oil system, the secondary heating system and the heat dissipation system are added to the oil supply level outlet pipeline of the lubricating oil pump. The problems of slow heating and inconvenient temperaturecontrol in existing technical schemes can be solved, specifically, with the addition of the lubricating oil system, a heating oil tank need not be heated for a long time before test running, and after a tester runs and the lu