Pine needles are tender leaves of Pinus massoniana, Pinus densiflora, Pinus sylvestris var. mongolica, Pinus armandii, Pinus armandii, etc. Pine needles are fragrant and contain many elements such as volatile oil, sugar, carotene, vitamin C, vitamin E and amino acids. Among them, carotene, vitamin C and vitamin E have anti-aging effects. Drinking pine needle water can prevent colds and treat chronic bronchitis and rheumatic joint pain. In ancient China, there was a record of eating pine needles and drinking pine needle tea to enjoy a long life. Pine trees are green and evergreen, and can be fried with tender pine needles at the turn of spring and summer; Tea can be fried with pine needles in autumn; In winter, pine needles can be used as vegetables, or dried and ground into powder and added to food for enjoyment.