Internet finance, which can be accessed and delivered through internet technology, has become increasingly important in financial markets. This study examines how internet finance affects the extensive and intensive margins of firm exports. We find that internet finance increases both the extensive and intensive margins of firm exports, with the results varying according to firm type. Specifically, internet finance (i) enhances the extensive margin for high-tech firms more than for low- and medium-tech firms; (ii) improves the extensive margin for large firms rather than for small firms; and (iii) benefits the intensive and extensive margins for high government subsidies firms more than for low government subsidies. Moreover, internet finance promotes exports by alleviating financial constraints and reducing the fixed costs of firm exports.