本文以上海光学仪器厂生产的2X_A型生物显微镜为例,在进行大量调研的基础上,根据价值工程原理,进行技术经济分析,去除多余功能,提高基本功能,对改型样机进行技术经济效果分析后,成本降低了10％左右。从而说明价值工程是降低产品成本,提高经济效益和仪器功能的行之有效的方法。 This article takes the 2X_A biological microscope produced by Shanghai Optical Instrument Factory as an example. Based on a large number of investigations, according to the principle of value engineering, technical and economic analysis is performed to remove redundant functions, improve basic functions, and analyze the technical and economic effects of modified prototypes. After that, the cost was reduced by about 10%. This shows that value engineering is an effective method to reduce product costs and increase economic efficiency and instrument functions.