How to enhance the produce efficiency of hi-tech investment has special meaning for China which is not very abundant financial.This paper discusses the investment of science and technology of government channel off and link up business capital,and provides some advices in the basic analysis of the problem:the process of investment incarnates business characters,link up the standard of evaluateand those of business capital and retain continuity.In order to re- flecting the desire of total society,the prognosticating of science and technology should be strengthened in setting special scheme of science and technology.