并行工程是先进制造技术的研究热点之一。本文介绍了并行工程的研究现状，特别对并行工程下的产品设计方法，即为制造、装配而设计（ＤＦＭＡ）的意义、基本原则进行了分析，确立了为制造而设计（ＤＦＭ）和为装配而设计（ＤＦＡ）两者之间的关系，并对在并行工程下实现为制造、装配而设计进行了初步的研究，得出了几点结论。 Concurrent engineering is one of the hot topics in advanced manufacturing technology. In this paper, the research status of parallel engineering is introduced. In particular, the product design methods under concurrent engineering, namely the significance and basic principles of DFMA, are analyzed, and the design for manufacturing (DFM) And design (DFA) between the two, and carried out a preliminary study of the design for manufacturing and assembly under the parallel project, and reached a few conclusions.