Belong to. Credit guarantee fund refers to a fund funded by the government, entity enterprises or financial institutions to provide credit guarantee services such as credit guarantee and short-term capital turnover for enterprises. Although the names of bond investment funds, debt risk resolution funds, debt smoothing funds and even credit enhancement special funds under the non-fund operation mode are different from those of credit guarantee funds, they are very similar in the purpose and function of establishment and operation, and all belong to the category of credit guarantee mechanism.