Its flowers are not only ornamental, but also used as medicine, which can treat women's hematochezia and menorrhagia, and can also be used as edible dyes. Besides making tea as a drink, leaves also have medicinal value. Camellia japonica has obvious effects on regulating blood lipid, blood sugar and cholesterol, enhancing immunity, improving various uncomfortable symptoms caused by hypertension, resisting bacteria and inflammation, clearing away heat and toxic materials, inducing diuresis to reduce swelling, enhancing liver and kidney vitality, preventing arteriosclerosis, preventing cancer and inhibiting tumor growth. After investigation, Camellia chrysantha has the functions of refreshing the brain, clearing liver and purging fire, clearing away heat and toxic materials, and nourishing vitality. Pharmacological records of Camellia japonica can be found in Outline of Guangxi Ethnic Medicine, Guangxi Chinese Herbal Medicine Standard, Proceedings of International Symposium on Camellia japonica in Fangcheng, China, Proceedings of International Symposium on Camellia japonica in Guangxi, China, China Zhuang Medicine and Dictionary of Medicinal Plants. Authoritative tests show that Camellia japonica is non-toxic and contains more than 400 kinds of nutrients beneficial to human body. Rich in tea polyphenols, total saponins, total flavonoids, tea polysaccharides, tea pigments, caffeine, vitamins, amino acids and other natural nutrients; As well as natural organic germanium (Ge), selenium (Se), molybdenum (Mo), zinc (Zn), vanadium (V) and many other trace elements that have important health care effects on human body, it is one of the plants and traditional Chinese medicines with the richest nutritional value in nature.