Supply chain finance is a crucial pathway to solve the problems of difficult and expensive financing for small and medium-sized enterprises (SMEs). However, due to credibility issues, supply chain finance faces development bottlenecks. Blockchain technology can help overcome the credibility challenges in supply chain finance. Nevertheless, problems such as internal coordination and hindered credit transfer still exist when blockchain technology is integrated with supply chain finance. This paper attempts to construct a blockchain-based supply chain finance model with “full process embedding.” The model is based on a dual-chain architecture, consisting of the enterprise information chain and the transaction information chain. The dual-chain architecture separates user privacy information from transaction information. This model can leverage blockchain technology to break through the key challenges in the trust mechanism of supply chain finance and solve the trust issues among various parties. In engineering project management, leveraging the “end-to-end integration” supply chain finance model with blockchain can offer more efficient, transparent, and secure solutions for supply chain finance.