Poultry feed additive

The invention aims to provide a poultry feed additive. A roxburgh rose extract is taken as a main material and combined with astragalus polysaccharide capable of enhancing the immunity of the body as well as a complex enzyme preparation and vitamins capable of promoting digestion and absorption to prepare the poultry feed additive which can improve the stress resistance of the body, enhance the immunity of the body and improve the digestion and absorption capability, and thus the growth is promoted and the production performance is improved. The technical scheme is that the poultry feed additive is mainly composed of the following components in parts by weight: 50-56 parts of the roxburgh rose extract, 10-20 parts of the astragalus polysaccharide, 5-8 parts of the complex enzyme preparation, 1-2 parts of vitamin D, 1-3 parts of vitamin E and 30-40 parts of bran.