The invention provides a chitosan emergent hemostasis material, which is provided with at least two layers of structures: a chitosan hemostasis layer as an upper layer, and a polyacrylic acid grafting chitosan lining layer as a lower layer, wherein the chitosan hemostasis layer is of a structure of a porous microsphere, porous fiber, porous sponge, or a compound of the porous microsphere, the porous fiber and the porous sponge; and the polyacrylic acid grafting chitosan lining layer is of a structure of porous fiber, porous sponge, or a compound of the porous fiber and the porous sponge. According to the chitosan emergent hemostasis material, the polyacrylic acid grafting chitosan is used as the lining layer of the chitosan, so that powerful water suction force can be provided, seepage velocity of blood in the chitosan hemostasis material is improved, blood is further concentrated, the density of the hemostasis material is improved simultaneously, the hemostasis material is easier to sink to arrive at a bleeding point, gravity press of a bleeding part is formed, pressurization is convenient, and the hemostasis effect is improved. Meanwhile, the polyacrylic acid grafting chitosan layer also can be used as a medicine-carrying substrate, can be used for carrying antibacterial drug, acesodyne, factors for promoting tissue repair and the like, and is good for preventing and controlling infection while stopping bleeding, relieving pains, and accelerating wound tissue healing.