The recent study was to investigate the synergistic activity of Chitosan, Alum, and PVA cross-linked haemostatic film to stop bleeding during the war and other accidental causes. In India around 30- 40% of uncontrolled haemorrhage responsible for trauma-related death. Formulation of haemostatic patches was done by solvent casting method. The physicochemical property of the film was assessed, and the result was found satisfactory. Effective results showed that the platelet count and blood-clotting index (BCI) were achieved in vitro by Chitosan composite alum (CH- alum) haemostatic film. Moreover, CH- alum haemostatics film had the best haemostatics effect in rat liver laceration model tests, rat jugular vein, and rat femoral artery model compared to with Chitosan (CH) and Alum haemostatics film. In conclusion, the formulation and development of chitosan- alum haemostatics film can be used as good haemostatics material in the treatment of blood loss. The haemostatics film has also anti microbial activity which is very important for wound healing. It helps to reduce the microbial growth on wound. Chitosan also has anti microbial effect shown in various study.