Perilla seed also can be called white perilla seed, grey perilla seed, black perlla seed, red perilla, etc. [Perilla frutescens（L．） Brltt．var.arguta Benth．Hand．－Mazz．] It owns special sweet smelling. Gansu Province Zheng Ning County has over 2000 years’ history of perilla seed planting, with the annual planting area of 110000 mu, and annual output over 10000 ton. The oil content of perilla seed is about 40%--50%. Perilla seed has 60% of α-flax acid, and it is the plant that has the highest α-flax acid content at present. The α-flax acid content reaches about 56.14-64.82％. α-flax acid is a necessary fatty acid for human beings. It transfers into life gene DHA and EPA (plant brain gold) that are essential for metabolism in human body, and has more distinct health protection functions and medical efficacy. The nutrition of 1g α-flax acid is equal to that of 30g see fish food. Perilla seed is the plant that has the highest α-flax acid content at present. The researches by Watababe and Horri, who are American experts, as well as professors from Japanese Nagoya College indicate that perilla seed has functions of: ①aging resistance；②memory improvement；③blood fat reducing；④weight losing；⑤cancer resistance and sensitive inflammation resistance. From the nutriology aspect, the perilla seed is praised as “the leading actor among fuctionality food in the 21 century”. Perilla is a vegetable with quite long history, and it was often used in flavorings and medicines. Its flower, leaf, bud and seed are all edible. Perilla is called “refined flavor”.