Acetyl octapeptide - 3 can be used as a chemical attractant to prepare environmentally friendly degradation additives for polymers, such as a double degradation additive to promote the photodegradation and biodegradation of polymers. It is a new environmentally friendly double degradation additive with the appearance of concentrated plastic mother chemicalbook particles, and can also play the role of repairing soil and compost. In addition, it can also play the role of blocking oxygen and flame retardant in many applications; The environment-friendly dual-degradation master batch can be applied to a variety of polymers.