The 21st century is a new era dominated by knowledge economy, intellectual property has become the most valuable form of property, and patent pledge financing is a product of the integration of knowledge capital and financial resources in the new era. Its emergence provides a new way to solve the financing problem of technology-based small and medium-sized enterprises. Since 2009, Zhejiang Province has issued a series of policies and measures to vigorously support the development of patent pledge financing, and achieved certain results. But at the same time, there are also some problems, such as the low proportion of patent rights into financing funds, imperfect risk-sharing mechanism, unbalanced regional development and low overall value of patents, which hinder its further development and need to be solved urgently. Therefore, based on the analysis of the factors restricting the development of patent pledge financing in Zhejiang Province, this paper puts forward corresponding countermeasures and suggestions from the point of view of each participant in patent pledge financing in order to promote the development and improvement of patent pledge financing in Zhejiang Province.