The invention relates to the technical field of biological medical adhesives, and particularly relates to a 
chitosan cicatrix biological medical 
adhesive and a preparation method thereof. Each 
liter of the 
chitosan cicatrix biological medical 
adhesive comprises the following raw materials: 5-30 grams of modified 
chitosan, 30-50 milliliters of 
glycerol, 0.5-2.5 grams of herba menthae, 0.1-10 grams of 
lactic acid, 0.5-2.5 grams of ginger extracting solutions, 3-35 grams of 
viscosity regulating agents and the balance of 
purified water. The chitosan cicatrix biological medical 
adhesive disclosed by the invention is complementary in 
raw material, can effectively reduce the pruritus, relieve the pain, fade the cicatrix color, ensures that the cicatrix is gradually reduced in area and become smooth, is suitable for inhibiting, alleviating and restoring the cicatrice caused by reasons, such as various burns and scalds, traumata, scratches, operations and 
acne, accelerates the healing of a 
wound surface, restores the surface cracks of the cicatrice, inhibits the 
secretion of collagen inside 
keloid skin, reduces the pruritus, relieves the pain and fades the cicatrix color.