The invention discloses a hand sanitizer applied to medical clinical laboratory. The hand sanitizer consists of the following raw materials in parts by weight: 10-20 parts of scapharca subcrenata extract freeze-dried powder, 10-15 parts of fucosterol, 4-15 parts of carboxymethyl chitosan, 7-11 parts of juice of awned goosefoot, 5-10 parts of chitosan, 5-8 parts of polysaccharides of sargassum graminifolium, 30-68 parts of water of washing rice, 2-5 parts of chlorhexidine acetate, 5-10 parts of an extract of broadleaf holly leaves, 5-10 parts of cocamidopropyl betaine, 4-8 parts of an extract of fructus rubi, 4-6 parts of herba portulacae juice, 2-5 parts of jellyfish collagen, 2-5 parts of coconut shell activated carbon and 1-3 parts of guar gum. The hand sanitizer provided by the invention has a good sterilizing effect and is long in bacteriostasis duration; meanwhile, the hand sanitizer has moisturizing and nourishing effects; and the hand sanitizer, when used, is free from any sideeffects and discomfort; therefore, the hand sanitizer is safer.