The invention discloses a field tobacco leaf mature harvesting method capable of reducing the content of fat powder gas in flue-cured tobacco fragrance. The field tobacco leaf maturing harvesting method comprises field lower tobacco leaf maturing harvesting characteristics, field middle tobacco leaf maturing harvesting characteristics, and field upper tobacco leaf maturing harvesting characteristics. The method has the characteristics of greatly reducing or eliminating fat powder gas content in flue-cured tobacco fragrance and improving flue-cured tobacco fragrance quality.