Objective To discuss the prognoais after hyperglycemia and electrolyte imbalance caused by stress in moderate or severe hypoxic ischemic encephalopathy newborns. Methods Blood sugar and electrolyte of 73 HIE patients, who hospitalized in our hospitial, including 73 moderate or severe patients and 63 mild patients. Results There was significant difference with increase of serum glucose,decrease of serum sodium and calcium between mod- erate or severe and mild HIE. The rate of hyperglycemia, hyponatremia and hypocalcemia was higher in moderate or severe HIE with 2 or more organ dyafunction than I alone. Conclusion The moderate or severe HIE newborns early time presents the hyperglycemia and the low blood sodium, the low serum calcium often prompts organism existence serious stress response, and prompts electrolyte disorder.