The utility model provides a throttle type fuel feeding mechanism and gasoline engine of gasoline engine carburetor, includes oil feed passageway, oil pump and the passageway that produces oil, the passageway that produces oil includes the oil feed mouth that is linked together with the carburetor, be equipped with the current -limiting body in the oil feed mouth, be equipped with restricted aperture on the current -limiting body. The utility model has the advantages of as follows: the utility model discloses enable gasoline engine steady operation under straight road conditions, still enablegasoline engine steady operation under uneven road conditions, avoid gasoline engine automatic flameout, the utility model discloses change current fuel feeding mechanism little, easily assembly, thecurrent -limiting body is simple easy, low in production cost.