∶目的∶诊断慢性胎儿宫内窘迫。方法∶通过对２０８例孕妇作彩色多普勒检查，建立由８项参数组成的指标体系，用电子表格进行数据处理，并用贝叶斯条件概率定理的方法进行多因素分析。在回顾性及前瞻性验证中，计算机判断符合率均达９０％以上。结论∶该方法能有助于临床判断慢性胎儿宫内窘迫。 Objective: To diagnose chronic fetal distress. Methods: 208 pregnant women were examined by color Doppler to establish an index system composed of eight parameters. The data were processed by electronic form and multivariate analysis was conducted by Bayesian conditional probability theorem. In the retrospective and forward-looking verification, the computer to determine the compliance rate reached more than 90%. Conclusion: This method can be helpful in judging chronic fetal distress.