Amorphophallus likes warm and humid, the optimum temperature is 20 ~ 30℃, the optimum temperature is 25℃, and the optimum relative humidity is 80% ~ 90%, that is, Amorphophallus likes places with long optimum temperature period but not suitable for hot and dry summer. As early as 3,000 years ago, China began to cultivate and utilize Amorphophallus, which is rich in resources in hilly areas of southern provinces, Qinling Mountains, Sichuan Basin, Yunnan-Guizhou Plateau, southern Yunnan and Taiwan Province Province. As early as in "Illustration of Materia Medica", "Compendium of Materia Medica" and other ancient books, it was recorded that konjac was cold and tasteless. It can reduce swelling and detoxify when used as medicine, and is mainly used to treat carbuncle, sore, swollen poison and scrofula. Amorphophallus konjac is rich in carbohydrates and low in calories. protein is higher than potatoes and sweet potatoes. It is rich in trace elements and vitamins A and B, especially glucomannan. It has the effects of losing weight, lowering blood pressure, lowering blood sugar, expelling toxin and relaxing bowels, preventing cancer and supplementing calcium.