Abstract Hyponatremia is one of the most common water salt disbalance ， it is caused by a lot of the factors.If it is serious that can endanger life， and the fatality rate rate is very high. Therefore， it is important that will help the clinician correctly identify an deal with the patients suffering from hyponatremia，and then improve the survival rate of the patients and decrease death rate，and shorten the hospitalization days. In recentyears， attention has been gradually more paid in clinical practice to hyponatremia especially the emergency ， and hyponatremia diagnosis and treatment are also gradually improved， Here is to make a review on the progress of diagnosis and treatment of hyponatremia.
