Objective To probe the method of inducing the cell model of heart qi deficiency.Methods The cell model of heart qi deficiency in vitro was induced by 1 3 hours of hypoxia/reoxygenation .Results After the cultured newborn NIH rat cardiomyocytes were given 1 3 hour of hypoxia the content of LDH,CK,MDA in the supernatant of cardiomyocytes increased and the content of SOD decreased.The was significant or very significant deference compared with those of control group ( P