Knowledge engineering is a kind of artificial intelligence technology, which uses the principles and methods of artificial intelligence for providing a means for difficult problems. The core of knowledge-based engineering is to integrate professional knowledge, domain knowledge, users’ maturity design experience, the choice of design parameters based on experimental data, material data, users’ feedback, and relevant design standards and norms into the design of software through the logical judgments and deduction, achieving product intelligent design. Moreover, knowledge base management realizes the accumulation and update, avoiding loss and outdated knowledge.