With the current economic downturn, the difficulty and high cost of financing for small and medium-sized enterprises have become a difficult problem in economic development, and supply chain finance has emerged as the times require. Supply chain finance can improve the credit business of commercial banks and effectively improve the financing difficulties of small and medium-sized enterprises. However, while solving the shortcomings of traditional finance, the operation of supply chain finance will also bring some problems, and many risks are gradually exposed. Taking China Construction Bank as an example, this paper selects 26 companies that CCB cooperate with to use supply chain finance business for research, analyzes the financial statements of these 26 companies in 2021, builds a corresponding indicator system, and uses principal component analysis to conduct analysis. Research its corresponding risks and put forward countermeasures and suggestions.