China's black truffles are mainly produced in Yunnan and Sichuan provinces and their surrounding areas, and China truffles are mainly produced in Jinsha River basin. Now, many truffles such as black truffles and white truffles have been found, which is one of the specialties of Jinsha River.

Truffle (scientific name: truffle) is the general name of a mushroom, which is classified into the genus Truffle (scientific name: Tuber) of the family Truffle in Ascomycota. There are about 10 different species, usually annual fungi, most of which grow in the roots of broad-leaved trees and generally grow under pine trees, oak trees and oak trees.

Truffles have a special edible smell and are rich in nutrients such as protein and amino acids. Truffle is extremely demanding on the growth environment, and it can't be cultivated artificially, and its output is scarce, which leads to its rarity and high cost. Therefore, Europeans rank truffles with caviar and foie gras as "the three most precious dishes in the world".

Truffles can be as small as peanuts or as big as handball. The growth cycle of truffles is only one year. Its size has nothing to do with its age. Growth, death and birth are only accompanied by the changes of the four seasons. Generally speaking, black truffles enter maturity from about1February until March of the following year. Over-ripe truffles will rot and disintegrate.