民营科技企业是以“自筹资金、自愿组合、自主经营、自负盈亏”原则开始起步发展的,其社会筹资至今已经历了三个阶段。第一阶段是80年代末90年代初,全国各地科委通过项目支持、贷款贴息等形式,对少数有较高科技含量和市场潜力的项目进行了一些支持,这种支持在当时的历史条件下,起到了积极的作用。但在这一过程中,也存在一些问题, Private science and technology enterprises started their development with the principle of “self-financing, voluntary combination, self-management, self-financing ”, and its social financing has gone through three stages so far. The first stage was from the late 1980s to the early 1990s. Science and Technology Commission of the whole country supported some projects with high technological content and market potential through project support and loan interest subsidy. Under the historical conditions at that time, , Has played a positive role. However, in this process, there are some problems,