Brewer's grains is the main by-product in beer production process, which is rich in nutrition and gen- erally discarded, resulting in waste of resources and environmental pollution. To reasonably develop the brewer's grains resources and according to our country's breeding high protein feed needs, this paper summarized the research progress of high protein feed and its application in poultry, swine, cattle and aquatic products by analyzing the nutri- tional composition and utilization situation. And according to the trend of the development ...