Coix lacryma, also known as Job's tears, commonly known as "medicine corn", "back to rice", "six grain rice". Job's tears are widely distributed in our country, and Guangxi Guilin region of Job's tears with pure seeds, large particles, containing starch, sugar, fat, cooking glutinous, sweet and delicious features, therefore, in the domestic and international market is quite famous. Job's tears belong to the grass family, annual or perennial herbs. Its culms are erect and robust, branched, and can grow up to 1-2 meters high, tufted. The leaves are linear-lanceolate with a thick midvein. Spikes, white. Monoecious. Fruit oval, size of a soybean. Seed kernel white, shaped like a small pearl. Guilin region has a mild climate, fertile and moist soil, especially suitable for the growth of Job's tears. Here Job's tears yield is higher than in other places, generally 200-300 pounds per acre, high up to more than 600 pounds. Job's tears are good for medicinal purposes. According to the medical department laboratory analysis, barley contains 16.2% protein, 4.6% fat, carbohydrate 79.2%. In winter, barley stewed pig's feet, ribs and chicken, is a kind of nourishing food. Summer with barley porridge or as a cold drink ice barley, and is a very good summer fitness clear tonic. Job's seed kernel and root can also be used as medicine to cure diseases. Li Shizhen in the "Compendium of Materia Medica" recorded: Job's tears can "strengthen the spleen and stomach, lungs and clear heat, wind and dampness. Cooking rice food, cure coldness. Decoction to drink, facilitate urination of hot showers." In recent years, a large number of scientific research and clinical practice has proved that Job's Tears is also an anti-cancer drugs, preliminary identification, it can be up to 35% or more of the cancer treatment inhibition rate. No wonder there is a folk song in Guilin area sang: "Job's tear is better than ganoderma lucidum grass, medicinal nutritional value is high, often eat can prolong the life of the old man and children to make a difference."