The major disease of Burley tobacco ( Nicotiana tabacum L.) in Korea were the vein-necrosis strain of potato virus Y (PVY) and black shank ( Phytophthora parasitica var. nicotianae). The incidence of above two diseases on the Burley tobacco plants are 6.8 and 2.9 percent, respectively, in the recent five crop years. Therefore one of the substantial objectives of the Burley tobacco breeding is to above two diseases. A new Burley tobacco variety, KB108, resistant to PVY and black shank was developed and released by the Korea Ginseng and Tobacco Research Institute in 1994. KB108, which was tested as KB 9118-14, was developed from a single cross between KB 104 and TN 86. KB 104 was the black shank resistant breeding line. KB 9118-14 was evaluated for its resistances to PVY, tobacco mosaic virus (TMV) and black shank in the greenhouse and field condition. It was also tested in the performance test and regional farm test for its agronomic characteristics in 1993 and 1994. KB 108, was highly resistant to PVY and TMV, and resistant to black shank. TN 86 and KB 104 were considered the source of resistance to PVY and black shank, respectively. KB 108, which has secreting glandular trichomes, has an erect growth habit and also has similar plant height and number of leaves per plant to those of Burley 21, major Burley cultivar in Korea. It produced high, good-quality yields and seemed to be well adapted throughout the PVY infested Burley growing area in Korea.