生态功能区划是区域社会经济协调发展的基础性工作，3S技术则是保证区划科学与准确的重要技术手段。以河南省濮阳市为例，介绍了3S技术在区域生态功能区划中的应用及其优势与特点，即数据的准确性、现势性和科学性得到进一步提高，而且空间分析功能充分实现了不同权重生态因子的叠加，同时在区划过程中充分考虑生态格局对生态功能的影响，因而区划结果更具科学性和现实意义。

The ecological function division is the premise of reconciliation of economy, society and environment 3S technologies are the important guarantee of the accuracy and feasibility for the ecological function division. Taking the city of Puyang in Henan Province as an example, the characteristics and advantages of using 3S technologies for ecological function region division are demonstrated. The 3S technologies can make the data much more accurate, more close to the status quo and more scientific. The spatial analysis function can fulfill the overlay analysis of differently weighed factors. The ecological pattern which deeply influences the ecological function are sufficiently considered in the division process thanks to 3S technologies. All mentioned above greatly improve the reasonability and practical significance of the ecological function division.