在产品概念设计的推理过程中 ,设计问题的知识表达是关键的第一步。本文运用人工智能的理论与方法 ,对概念设计过程的问题归约、‘与 /或’树表达、问题解的判定与表达作了初步的研究 ,为概念设计过程解答的搜索与优化 ,进而为智能设计的计算机软件化打下良好的基础。 Knowledge of design problems is a crucial first step in the reasoning of product conceptual design. In this paper, the theory and method of artificial intelligence are used to conduct a preliminary research on the reduction of concept design process, the expression of ’and / or’ tree, the determination and expression of problem solution, and the search and optimization of solution to conceptual design process, Intelligent design of computer software laid a good foundation.