The present invention provides novel Brassica campestris L. ssp. chinensis Hongkyeongchae, and a seed thereof by abandoning an interspecific hybrid F1 of Brassica campestris var. chinensis and Brassica koreana Lee var. redleaf for the stabilization of a hybrid embryo back crossing a F2 plant by using Brassica campestris var. chinensis as a seed parent obtaining various strains of plants having the shape of conventional Brassica campestris var. chinensis and showing red color obtaining a plurality of red Brassica campestris var. chinensis from the progenies obtained by back crossing various strains of B1F1 plants selected from the obtained plants with Brassica campestris var. chinensis and carrying out strain acclimation and a self-incompatibility test, a seed productivity test and a local adaption test of a remarkable strain of a plant having the shape of conventional Brassica campestris var. chinensis and showing red color.
