Jumping spiders, Salticidae, 1 family of the order Spider, commonly known as jumping spiders. Most of the body length does not exceed 15 mm. The body is short, thick and slightly flat, and the feet are short and strong, and they are good at jumping, hence the name. Jumping spiders are the largest family of spiders, with about 3,000 species worldwide. Distributed all over the world, there are many species in the tropics and subtropics. The variety and quantity of southern China are better than those of northern China.