‘Gongi-1ho’ a new variety of oyster mushroom, fitting for the bottle culture, was bred and by mating between monokaryons isolated from Kimjae-7ho and Samgu01. In the major characteristics of fruit body, the pilei were thick and dark-gray and the stipes were thick and long with softness. It was great in elasticity and cohesivness of tissue as compare to chunchu-2ho. The optimum temperature for the mycelial growth was around 26~29℃ and that for the pinheading and growth of fruitbody was around 14~18℃. In the bottle culture, it was required around 33 days in incubation period and 5 days in primordia formation. The fruit body was grew vital and uniform. The yield were shown by 140.6g/850cc bottle.