本文介绍了七院在航天工业总公司领导下，在以“设计为主，多种经营”工作方针指导下，冲破了过去计划经济的束缚，在经营思想、经营范围、运行机制上作了较大改革，向工程设计的两头延伸，在工程承包和工程监理方面，成立了相应机构，使业务不断扩大，取得了较好的成绩。 This article introduced the seven institutes under the leadership of the Aerospace Industry Corporation, under the guidance of the “Design-oriented, diversified” working principle, broke through the shackles of the planned economy in the past and made comparisons in terms of business thinking, business scope, and operating mechanism. The major reforms extended to the two ends of the engineering design. In terms of project contracting and project supervision, relevant agencies were set up to expand the business and achieve better results.