采用多因素逐步回归分析方法研究评估301例急性心肌梗塞(AMI)急性期(四周内)心泵功能状况。取F_(0.05)=3.86,通过电子计算机对22项因素进行分析,筛选出5项评估泵功能有显著性意义的因素:血压、双肺啰音、心音、奔马律和并发病,并建立数学模型。自身回代总符合率为83.1％,泵衰竭符合率75.9％,其中泵衰竭Ⅱ～Ⅲ级符合率80.8％,IV～V级符合率67.7％,泵功能正常(含泵衰竭Ⅰ级)符合率85.8％。本模型对评估AMI急性期泵功能有一定的客观价值。 Multi-factor regression analysis was used to assess the cardiac function of 301 patients with acute myocardial infarction (AMI) during the acute phase (within 4 weeks). F_ (0.05) = 3.86, we analyzed 22 factors by computer and screened out 5 factors that have significant significance in evaluating pump function: blood pressure, pulmonary rales, heart sounds, gallop and complications, and established mathematical model. The total coincidence rate of self-back was 83.1%, and the coincidence rate of pump failure was 75.9%. The coincidence rate of pump failure grade Ⅱ ~ Ⅲ was 80.8%, the compliance rate of IV-V grade was 67.7%, and the pump function was normal 85.8%. This model has certain objective value for assessing AMI’s acute phase pump function.