The utility model provides a booster returns oil tube assembly, includes turbo charger, oil return line, quick -witted oil trap, oil pump, and oil return line includes a pipeline, no. Two pipelines, and the both ends of a pipeline communicate with each other with the oil outlet of booster, quick -witted oil trap's entry respectively, and the both ends of no. Two pipelines communicate with each other with quick -witted oil trap's export, the entry of oil pump respectively, and are provided with flow control valve on pipeline. This design has not only effectively reduced the oil spill risk of booster oil blanket but also has guaranteed lubrication, the cooling effect of booster.