Government financing guarantee support model, financial and industrial policy collaborative support model and financial and fiscal policy collaborative support model. Zhejiang Provincial Government issued "Opinions on Financial Support Stimulating the Vitality of Market Subjects". According to this opinion, Zhejiang Supervision Bureau of China Banking Regulatory Commission and other departments issued the Notice on Establishing and Perfecting the "Double Guarantee" financing support mechanism, which clearly put forward three support modes, the first of which is the government financing guarantee support mode, and the other two are the coordinated support mode of financial and industrial policies and the coordinated support mode of financial and fiscal policies. The "double insurance" emergency financing mechanism relies on the national financing guarantee fund to establish a "4222" risk sharing model, that is, the city and county guarantee institutions bear 40%, and the national financing guarantee fund, the provincial re-guarantee company and the cooperative bank each bear 20%.