The shorttermizatiom of debt maturity is a common problem faced by enterprises in China, and the resulting short term credit for long term investment behavior is the root cause of all kinds of systemic financial risks. Using the data of Ashare listed companies from 2009 to 2021, this study empirically investigates the effects and mechanisms of supply chain transparency on corporate shortterm credit for longterm investment. The results show that supply chain transparency can effectively mitigate the problem of corporate shortterm credit for longterm investment, the impact of which is mainly reflected in the enterprises with high degree of information asymmetry, high demand for entity investment, and the effect of customer transparency is more significant than that of supplier transparency. The mechanism analysis shows that the logic of mitigating corporate shortterm credit for longterm investment lies in both supplyside and demandside, enhancing supply chain transparency on the one hand helps to improve the information asymmetry between banks and enterprises, and improves the availability of corporate longterm credit; on the other hand, it strengthens the incentives for supplier customers supervision and governance participation, and inhibits corporate overinvestment behavior. Further research finds that shortterm credit for longterm investment exacerbates the risk of corporate stock price collapse, which spills over to upstream suppliers, and that supply chain transparency mitigates the negative impact of shortterm corporate credit for longterm investment on the risk of stock price collapse. The above findings help to deepen the understanding of the economic benefits of supply chain information disclosure, and also provide new insights to mitigate the predicament of corporate shortterm credit for longterm investment, which is instructive for the subsequent improvement of the regulatory policy of corporate supply chain information disclosure.