A cat litter, characterized in that, the cat litter is a core-shell structure comprising: a core, comprising the following components: 100 parts by weight of a non-grain plant fiber, 0.6-12 parts by weight of an agglomeration factor, 0.6-12 parts by weight of a water absorption factor, 0.13-2.23 parts by weight of a breeding improvement factor, 0.13-2.23 parts by weight of a deodorizing factor, and 0.13-2.23 parts by weight of an anti-mold factor; and a shell layer, comprising the following components: 100 parts by weight of a non-grain plant fiber, 99.5-600 parts by weight of an agglomeration factor, 3.33-100 parts by weight of a water absorption factor, 33.3-300 parts by weight of a breeding improvement factor, 3.33-100 parts by weight of a deodorizing factor, and 0.66-20 parts by weight of an anti-mold factor; wherein a weight ratio of the shell layer to the core is 1:; the non-grain plant fiber comprises one or more of a bagasse fiber, a bamboo fiber, an eucalyptus fiber, a giant fungus grass fiber, a straw fiber, an eulaliopsis binata fiber, and a bamboo shoot shell fiber; the agglomeration factor comprises one or more of whey protein, sodium alginate, corn protein, montmorillonite, carboxymethyl cellulose and derivatives thereof, guar gum, native starch, pregelatinized starch, and jelly glue; the water absorption factor comprises one or more of polyacrylates, starch-acrylate polymers, starch-acrylonitrile graft copolymers, acrylamide-acrylonitrile-acrylic acid terpolymers, polyacrylamides and derivatives thereof, and polyvinyl alcohol; the breeding improvement factor comprises one or more of attapulgite, polyacrylamide-attapulgite composite adsorbent, high-purity nano-modified montmorillonite, plant essential oil, hydrated sodium aluminosilicate, diatomaceous earth, and zeolite; the deodorizing factor comprises one or more of allophane, hydrophilic modified ultrafine silica, baking soda, nano-zinc oxide, and nano-titanium dioxide; and the anti-mold factor comprises one or more of esterified glucomannan, hydrated sodium calcium aluminosilicate, silver-loaded zirconium phosphate antibacterial powder, copper-loaded phosphate antimicrobial powder, organic zinc ion antimicrobial powder, 5-chloro-2-methyl-4-isothiazolin-3-one, 1,2-benzisothiazolidine-3-one, 4,5-dichloro-2-n-octyl-3-isothiazolinone, 2-methyl-4-isothiazolin-3-one, and N-octyl-4-isothiazolin-3-one. a core, comprising the following components: 100 parts by weight of a non-grain plant fiber, 0.6-12 parts by weight of an agglomeration factor, 0.6-12 parts by weight of a water absorption factor, 0.13-2.23 parts by weight of a breeding improvement factor, 0.13-2.23 parts by weight of a deodorizing factor, and 0.13-2.23 parts by weight of an anti-mold factor; and a shell layer, comprising the following components: 100 parts by weight of a non-grain plant fiber, 99.5-600 parts by weight of an agglomeration factor, 3.33-100 parts by weight of a water absorption factor, 33.3-300 parts by weight of a breeding improvement factor, 3.33-100 parts by weight of a deodorizing factor, and 0.66-20 parts by weight of an anti-mold factor; wherein a weight ratio of the shell layer to the core is 1:; the non-grain plant fiber comprises one or more of a bagasse fiber, a bamboo fiber, an eucalyptus fiber, a giant fungus grass fiber, a straw fiber, an eulaliopsis binata fiber, and a bamboo shoot shell fiber; the agglomeration factor comprises one or more of whey protein, sodium alginate, corn protein, montmorillonite, carboxymethyl cellulose and derivatives thereof, guar gum, native starch, pregelatinized starch, and jelly glue; the water absorption factor comprises one or more of polyacrylates, starch-acrylate polymers, starch-acrylonitrile graft copolymers, acrylamide-acrylonitrile-acrylic acid terpolymers, polyacrylamides and derivatives thereof, and polyvinyl alcohol; the breeding improvement factor comprises one or more of attapulgite, polyacrylamide-attapulgite composite adsorbent, high-purity nano-modified montmorillonite, plant essential oil, hydrated sodium aluminosilicate, diatomaceous earth, and zeolite; the deodorizing factor comprises one or more of allophane, hydrophilic modified ultrafine silica, baking soda, nano-zinc oxide, and nano-titanium dioxide; and the anti-mold factor comprises one or more of esterified glucomannan, hydrated sodium calcium aluminosilicate, silver-loaded zirconium phosphate antibacterial powder, copper-loaded phosphate antimicrobial powder, organic zinc ion antimicrobial powder, 5-chloro-2-methyl-4-isothiazolin-3-one, 1,2-benzisothiazolidine-3-one, 4,5-dichloro-2-n-octyl-3-isothiazolinone, 2-methyl-4-isothiazolin-3-one, and N-octyl-4-isothiazolin-3-one.