Abstract: The study of integration of multi-source heterogeneous planning data all have been the hotspot and difficulty in the field of spatial information technology the entire world.This paper analyzes the advantages and feasibility of using ontology technology under the ground of analyzing correlative integration technology，and confirms the features of planning ontology.This paper puts forward the framework of data integration based on ontology and implemented data integration using this framework.This paper carries through useful experiment from the point of theory and practice.

摘要： 多源异构的规划数据集成问题一直是国内外空间信息技术研究的热点和难点，在分析有关集成技术的基础上，从本体技术入手，分析了利用本体技术实现规划数据集成的优势及可行性，并确定了规划本体的特点，在此基础上提出了基于本体的数据集成体系结构及利用该体系实现规划数据集成的方法，为实现数字城市规划进行了有益的理论和实践探讨。