在 SIMULINK 环境下，基于Matlab 模糊逻辑工具箱建立模糊推理系统，设计出模糊自整定PID 参数控制器，并开发相应的ActiveX 控件，将Matlab 工具箱与监控组态软件结合，在实现PID 参数在线自整定的同时，实现将复杂的控制算法应用于工业现场。这对于研究Matlab 及复杂算法在模糊控制工程领域的应用是有意义的。关键词：自整定PID；在线自整定；组态软件；模糊控制Abstract: In this paper, based on the fuzzy inference systems (FIS) toolbox for Matlab in SIMULINK environment, a fuzzy reasoning system is set up and then a self-tuning fuzzy PID controller is designed. By means of developing ActiveX control, the toolbox for Matlab and the configuration software are combined. As a result, not only online automatic tuning isreached, but also complex control algorithms can be applied to industrial locale. The research work here is significant for applying Matlab toolboxes and complex algorithms to the field of fuzzy control engineering.Key Words: Self-tuning PID Controller; Online Automatic Tuning; Configuration Software; Fuzzy Control