China is very rich in wild vegetable resources, with 213 familes and 1 822 species. They distribute naturally in whole China or some area. A lot of species are very high in nutritional value and some species have good medical value or special usage. Thus wild vegetable has very good exploitation prospects in scientific research, food usage, feed usage, industry and export et al. Although the utilization of wild vegetable is long in China, it has not formed a scale and there are still quite a lot of problems...