Abstract: In order to deal with the shortcomings of classical intelligent planning methods with respect to the utilization of domain knowledge, this paper proposed an ontology-based intelligent planning approach by combining advanced knowledge engineering technology with general-purpose planning algorithm, which could make full use of domain knowledge in ontology-based knowledge base to efficiently resolve planning problems in the domain. "hhe practical method to establish the domain ontology-based knowledge base supporting the planning process was also presented. I}he experiment results indicated that the approach could effectively solve complex application problems and make the planning system actually reach the practical level.

Key words: Intelligent planning, Domain ontology, Domain-general planner, Domain constraint, Uoal preference