The invention provides an anti-stress fermentation protein feed which is produced by composite bacterium inoculation and high-temperature and moderate-temperature fermentation of a plant derived protein raw material, a terrestrial animal derived protein raw material and a marine animal derived protein raw material. Macromolecular substances in the protein feed are digested and decomposed into micromolecular substances, stressors in nutritional ingredients are decreased, anti-stress active factors such as genistein, glutathione and glucosamine are increased, the immunity of fed animals is improved, and the protein feed shows a good anti-stress capability. The invention further provides a producing method of the anti-stress fermentation protein feed. The feed product with high functionality, good anti-stress effect and high economical efficiency is obtained with the adoption of the multiple derived protein raw materials, a specific formula and an appropriate matching ratio and by mixed fermentation through a special secondary fermentation process.