Objective To prepare arresting bleeding film, study the dosage proportion of chitosan, gelatin and PEG400.Also to study the mechanical function influence of adipic dialdehyde solution to arresting bleeding film. 目的制备止血模,研究壳聚糖、明胶、PEG400间的用量比及己二醛溶液的使用对止血膜机械性能的影响。