‘Kanghan No.1’ is a high quality non-heading Chinese cabbage F1 hybrid developed by crossing 14LY106 as female parent and 14LY108 as male parent.The plant is rather erect,in the early spring the seeds are sown for 40 days，22 cm in height and 22 cm in width.The leaf is flat and green in color.Its petiole is 3.2 cm in width,0.68 cm in thickness.The single plant weight is 68 g.It has crisp quality and tastes rich with less fiber.It can yield 36 t ?hm-2 in spring cultivation.It is resistant to virus disease and downy mildew.It has good tolerance to cold and bolting.It is suitable for spring and autumn winter cultivation in northern China.