Rumen acidosis is an acute digestive tract acid poisoning disease caused by excessive intake of concentrates with abundant soluble saccharides that result in a rapid increase of rumen pH value and a fast accumulation of lactic acids in the rumen.The tureen acidosis can also develop into food disease and rumen inflammation,which affects significantly the animal husbandry of China.The review summarized the influencing factors,disease occurrence and prevention etc.to provide the references for rumen acidosis prevention and treatment.