Polycaprolactone is a biodegradable synthetic polymer that has been shown to have antimicrobial properties. Polycaprolactone has been used in wastewater treatment and has been shown to inhibit the growth of histological analysis, vivo model, vitro assays, polyvinyl, collagen, carcinoma cell lines, tissue culture, ethylene diamine, water vapor, cell culture, and hydrogen bond. It can be used to prepare biodegradable active packaging films. Since its ester-functionalized backbone structure can assist the adhesive performance, it can be used as the soft phase in the preparation of high-clarity polyurethane adhesive. Polycaprolactone (PCL) and PCL‐based materials are widely applied in the biomedical field[1]. It biodegrades slowly, which makes it more suitable for hard tissues that take longer to heal. Its mixing with other biodegradable materials regulates its degradation rate, making it also suitable for soft tissues[2]. In studies with wild-type strains of bacteria such as Escherichia coli and Staphylococcus aureus, it showed activity against both Gram-positive and Gram-negative bacteria. It also showed activity against the bacterium that causes tuberculosis.