Since China joined WTO, small and medium enterprises (SMEs) in China have entered a new development stage. In current stage, SMEs have entered the mature process, thus called mature SMEs. The growth rate will be tend to be mild and stable. Meanwhile, the operational risk of SMEs will lower. According to current situation, most mature SMEs have numerous problems, mainly including poor competitiveness, lack of standardization in management and insufficient capital etc. These problems seriously hinder the development of mature SMEs. In such an important period, financing strategy management of mature SMEs is an effective way to help enterprises solve problems. On this basis, the author deeply discusses financing strategy management of mature SMEs.