Most of the enterprises in the logistics supply chain are small and medium-sized micro - enterprises. The credit rating of enterprises is generally low. Many enterprises do not get credit rating and it is difficult to obtain financing loan services from banks or financial institutions. Of course, it is not only small and medium-sized micro - enterprises, but many enterprises of a slightly larger scale are studying new logistics fields, such as unmanned aerial vehicle logistics, because there are no past cases in the field and there is a lack of value evaluation, and they are also faced with situations where insurance companies do not guarantee equipment and banks or financial institutions do not provide loan services. Block chain technology can value, asset and track the ownership of information-based goods, and the goods in the chain can be traced back, falsified and not tampered with. Make the flow of funds efficient and reasonable.