The evaluation of influence of some technical factors on yield and quality of cured leaf of local tobacco variety Bac Son has carried out by The Tobacco Economic and Technical Institute in 2011 at Bac Son district, Lang Son province. The results showed that the early crop, transplanting in early february has higher yield and higher percentage of upper grades cured leaves in comparison with the later crop. There is no difference between two crops about quality of cured leaf. Fertilization level and density of plant population has affect on yield and grade of cured leaf, however it affects not much to quality of cured leaf. Fertilizer level of 60 kg N + 90 P2O5 + 120 kg K2O//ha and density of 20,000 plants/ha has the highest yield and quality.