In order to solve the problems of insufficient test data and low diagnosis accuracy, a fault location approach for analog circuits is developed based on intelligent information fusion technology including data fusion, neural network and fuzzy theory. 针对模拟电路故障诊断中存在的测试信息不足、故障定位准确性较低等问题,提出了一种应用智能信息融合技术的模拟电路故障定位方法。