‘Yujie No.1’ is a new leaf mustard cultivar（Brassica juncea var.latipa）bred from local cultivar ‘Baobaocai’ through 6 generations’ single plant inbred purification and pedigree cultivation with fixed direction. This variety is of late-maturity， and has wide and fleshy leaf blade and midrib. It has good processing quality and high yielding ability. The maximum leaf blade is 70-75 cm in length， 25-30 cm in width. Its rib leaf blade is 35-40 cm in length， 12-15 cm in width and about 1.1 cm in thickness. The single plant fresh weight is about 2.0- 2.5 kg， and single petioles rib fresh weight is around 210 g. The economic and effective leaf blade number is over 7. Its normal yield is about 105 t·hm-2， and by high-yield cultivation it can yield over 120 t·hm^-2. It is suitable for cultivation in Chongqing Municipality， Sichuan， Yunnan， Guizhou Provinces and regions， generally as processing material for sauerkraut， and also as fresh food.