Digital currency credit investigation system and method

The invention belongs to the technical field of digital currency, and provides a digital currency credit investigation method. A digital currency address resource library is established based on a digital currency exchange or a digital currency purse. The digital currency exchange issues a currency withdrawal or deposit address verification request to the digital currency address resource library before a user withdraws or deposits currency in the digital currency exchange, or a digital currency purse user issues a transaction address verification request to the digital currency address resource library before conducting a transaction. The digital currency address resource library responds to the currency withdrawal or deposit address verification request issued by the digital currency exchange, comparatively judges the verification request, and correspondingly processes the judgment result. A digital currency credit investigation system put forward by the invention comprises a digital currency exchange, a digital currency address resource library server, a security address module, and an analysis module. Through the system and the method, greater economic loss is avoided.