Platycladus orientalis leaves, also known as Platycladus orientalis leaves, Platycladus orientalis leaves, etc. It is the tender branch of Platycladus orientalis, an evergreen plant of Cupressaceae. Modern people regard Platycladus orientalis as a green ornamental plant, but little is known about its health care value.

In ancient times, the tender branches and leaves of Platycladus orientalis were praised by Taoism as the top grade to prolong life. Li Shizhen's Compendium of Materia Medica in Ming Dynasty is the foundation of longevity, so it can be taken orally. Taoism often uses it to drink soup, and makes an authoritative summary of the dietotherapy and health preservation value of Platycladus orientalis leaves. Platycladus orientalis is also a good medicine for treating blood that doctors attach importance to. Chinese medicine believes that the leaves of Platycladus orientalis are bitter, slightly cold and nontoxic, and enter the heart, liver and intestine. Has the effects of cooling blood, stopping bleeding, eliminating internal dampness, relieving swelling and removing toxic substances. Can be used for treating hematemesis, nosebleeds, hematuria, bloody dysentery, metrorrhagia, rheumatalgia, cough, scald, etc. Tao Hongjing's "Records of Famous Doctors" said: It can make people fit, benefit qi, resist cold and heat, dispel dampness and stop hunger. Platycladus orientalis leaves can be used together with Cirsium japonicum and Radix Rehmanniae to treat various heat bleeding. It can be used in combination with Folium Artemisiae Argyi and Rhizoma Zingiberis Preparata to treat gastric and duodenal ulcer bleeding due to deficiency-cold type. Traumatic bleeding can be pounded with fresh Platycladus orientalis leaves for external application. Platycladus orientalis leaves can be combined with Polygonum Multiflori Radix, Fructus Ligustri Lucidi and Radix Rehmanniae to treat liver and kidney deficiency and premature gray hair in middle-aged and elderly people. It can also be used to treat seborrheic dermatitis by soaking in fresh wine.

Modern medical research provides strong evidence for the dietotherapy and health-preserving efficacy of Platycladus orientalis leaves. Platycladus orientalis leaves contain volatile oil, including junichiric acid, Platycladus orientalis ketone and so on. Pharmacological experiments show that Platycladus orientalis leaves have obvious antitussive effect and obvious inhibitory effect on pneumococcus, Staphylococcus aureus, Staphylococcus albicans and Shigella sonnei. And can shorten the bleeding and coagulation time. It has certain curative effect on pneumonia, dysentery, hypertension and other diseases.