Science-technology enterprises are faced with financing restriction because of high operating uncertainties，information asymmetry between investors and financiers and complexity of science-ethnology finance mechanism. Based on dissipative structure theory and grey relation analysis， this paper constructs a model to measure the orderliness of science-technology finance mechanism so as to evaluate the synergetic degree among the subsystems and the efficiency of resource allocation. The examination of the sample data from Jiangsu Province shows that the entropy of the science-technology finance mechanism declined from 2005 t0 2006，which means the allocation of scientific technological and financial resources was enhanced. Then，the entropy rose rapidly and kepi f1ucW wing in recent years，which means there is room for the improvement of the orderliness of the science-ethnology finance mechanism. Based on the study,it is necessary to fake measures as follows:improving the supply system of policy funds，promoting system and product innovation，absorbing private capital，integrating marked resources with governmental and social resources and perfecting technological and financial ecology.