With the development of economy and improvement of the human living standards, the pet number of cats and dogs kept in households is also increasing. At the same time, the disposal of pet excrement also troubles most households with pets. Therefore, the American scholars researched of the use of cat litter based on the cat’s characteristic that cats will bury their dung with sand or soil. As far, due to the cat litter has the advantages of deodorization, strong adsorption, non-toxic, non-polluting, the cat litter is used for household pet cat, dogs, and other small pets. When your cats use the cat litter, the cat dung or urine are in contact with cat litter to from a spherical shape by the hydroscopic effect of cat litter. What’s more, the cat litter that is not contaminated with feces or urine can continue to be used, and it is extremely easy to clean up the feces and urine of small pets.