Squirrels seem to feed on the seeds of Fagaceae plants, but they also eat quite a few insects in nature, so it's best to feed them something animal-based as well. Nuts such as walnuts and chestnuts are the favorites of squirrels. Biting through the hard shell is not only a game for squirrels, but also helps to wear their teeth. It is best to feed these foods regularly. If artificial feed is the staple food, apples and other foods should also be supplemented.

Good feed and scientific management are important conditions for ensuring the normal growth and development of squirrels, as well as conditions for improving the production capacity of squirrels and improving breeds. The ratio of feed mix should pay special attention to the content and quality of protein. The squirrels are fed mixed feed, roughage and green juicy feed. The mixed feed is generally composed of barley, wheat, corn, soybeans and husks, and the content is 25% barley or wheat, 20% corn, 15% bean cake, 10% soybean, 20% drum skin, 6% fish  meal, 3% bone meal and 1% salt, the nutrients of this mixed feed are: more than 20% protein, 6% fat and 42% carbohydrate, etc. The roughage mainly includes peanuts, sunflowers and walnuts; the green and juicy forages include cabbage, carrots, rapeseed, mulberry leaves, and holly leaves; in summer and autumn, you can also feed a little food such as melons and fruits, such as cucumbers, tomatoes and watermelons. The daily feeding amount for each squirrel is about 30 grams of mixed feed, 200 to 250 grams of roughage, and 150 to 200 grams of green and juicy feed. It is necessary to feed three times a day in the morning, at noon and in the evening, and it is necessary to have a fixed feeding point every day. For young squirrels, the frequency of feeding should be appropriately increased to ensure that it can feed at any time and meet its energy and nutritional needs for growth and development.

In different periods, squirrels have different changes in their nutritional requirements for food. For female squirrels, the feed should be diversified during pregnancy and lactation, and the feed should be as fresh as possible with complete nutrients to meet the nutritional needs of the growth and development of the fetus or young, especially to increase the protein content in the diet. For cubs at different developmental stages, attention must also be paid to the composition of the nutritional structure of the food when rearing.

Male squirrels should also strengthen nutrition during the breeding period and recovery period, and increase the supply of fish meal and milk; however, it should be noted that if the supply of carbohydrates exceeds the feeding standard, it will cause the squirrel's physique to decline. , for the young, it is shown to affect its growth and development rate.

The squirrel's drinking water must be clean, and the water should be changed frequently in summer, and frozen water should be avoided in winter, so as to reduce the possibility of poor animal health and infection.