Collapsed cabbage is a famous specialty of Anhui Province, is a variant of cabbage, leaf color green, fat and tender, because of the collapsed growth and named. It is mainly distributed in the Yangtze River basin in China, and has the advantages of wide distribution, high yield, good flavor and long supply period. The main characteristics are: dark green plant, short and flat petiole, leaf blade fat and have bubble wrinkles and prickly hairs; outer leaf collapse growth, heart leaves have different degrees of tendency to roll heart; cold, can be over-wintering in the open ground, winter, spring can be supplied to the market in both seasons; strong flavor, frost and snow cover, soft and juicy, sugar increase, quality is particularly good, so there is "snow collapse vegetables race lamb "Therefore, there is a proverb.