With the continuous advancement of the marketization of data factors, data assets have gradually become the key production factors and emerging strategic assets of enterprises, which plays an important role in improving the financing environment of enterprises. This study uses the text mining method to construct the data asset information disclosure index and examines the impact of data asset information disclosure on trade credit financing using Ashare listed companies from 2007 to 2022. The results show that data asset information disclosure can significantly promote trade credit financing. Mechanism analysis reveals that data asset information disclosure plays a role in information increment effect, risk reduction effect and market advantage effect, which has a positive effect on trade credit financing through increasing information transparency, reducing financial risks and enhancing market competitive position. Heterogeneity analysis shows that the positive effect is more obvious in enterprises with low internal control quality, enterprises with high degree of industry competition and enterprises in areas with low level of financial development. The conclusion not only enriches the relevant research on the economic consequences of data asset information disclosure and the influencing factors of trade credit financing, but also provides new empirical evidence for mining the value of data assets, promoting the marketization of data elements, and easing the financing constraints of enterprises.