The invention discloses a chitosan-based hemostatic material and a preparation method thereof. The chitosan-based hemostatic material is prepared from, by mass, 20-40 parts of chitosan, 8-12 parts of corn starch, 1-5 parts of whey protein, 2-5 parts of wheat starch, 1-5 parts of glucose, 2-5 parts of sodium alginate, 2-10 parts of pectin, 1-4 parts of lecithin, 1-4 parts of citric acid, 1-3 parts of sodium fumarate, 1-4 parts of sodium chloride and 8-15 parts of polyhydric alcohol, wherein polyhydric alcohol adopts ethanol or glycerol, and preferably, 2-6 parts of vitamin C and 1-3 parts of vitamin E are included. The chitosan-based hemostatic material has the advantages that the excellent anti-bacterial, hemostatic and analgesic effects are achieved, defective tissue repairing can be facilitated, the anti-adhesive effect is good, the biocompatibility is achieved, the safety are good, the antigenicity does not exist, use is safe, the preparation method is simple, and use is convenient.