IEC 61131-3是可编程序控制器的编程语言的标准，它将现代软件的概念和现代软件工程的机制与传统的PLC编程语言成功地结合，使它在工业控制领域的影响越出PLC的界限，成为DCS、PC控制、运动控制,以及SCADA的编程系统事实上的标准。本文综述了该标准成功的原因，它的优势和不足，目前和今后的发展，以及推广应用的活动。-PLC programming language standards, it modern software and the concept of the modern software engineering with the traditional mechanism of PLC programming language successfully integrated, it industrial control in the affected areas beyond the limits PLC, as DCS, PC control, motion control, the programming and SCADA system the de facto standard. This paper reviews the success of the standard reasons, the advantages and shortcomings, the current and future development and application activities.