The weasel eats meat and is a carnivore, and a pure carnivore at that.

As early as in the 1960s, China's veterinary expert Prof. Sheng Hualin had carried out an in-depth study on weasels. In order to figure out their food habits, Prof. Sheng collected more than 4,978 weasel carcasses from more than 11 provinces in China's south and south of the Yangtze River, dissected them, and studied their stomach contents, and published the results of his study in 1983 in the journal Nature. magazine in 1983.

According to Prof. Sheng's research, the weasel has more than ten choices of prey, such as rodents, various insects, frogs, snakes, lizards, snails, bird eggs, birds, and even fish. Although weasels have a wide selection of food, the most frequent and common prey appearing in the stomachs of close to 5,000 weasels are rodents, including voles and house mice.

Habitat:

Inhabits mountains and plains, found in forest edges, river valleys, thickets, and grassy knolls, and also frequented near villages. Dwells in stone caves, tree holes or under fallen trees. They are common in primary and secondary deciduous, coniferous and mixed forests, as well as in small patches of forests and forest grasslands in open areas.

They are common in cultivated fields in rural China, where they are easily attracted to high densities of rodents. In large cities in central and northern China, such as Beijing, they often occur throughout busy areas. It is not certain that the pattern of occurrence of this species is confounded with the widespread release of this species to control the behavior of rats. The species can also be found in river valleys and sometimes survives above the tree line in mountainous areas.