This study examines the relationship between digital technology orientation (DTO) and firms' internationalization performance, delineating DTO into five dimensions: artificial intelligence, blockchain, cloud computing, big data, and digital technology applications. We propose three key hypotheses and analyze data from 24,545 observations of Chinese A-share listed companies between 2014 and 2022, sourced from the CSMAR database. Our fixed and random effects panel models demonstrate that DTO positively impacts internationalization performance, with the effects of artificial intelligence, cloud computing, and digital technology applications being particularly significant. Moderation analysis reveals that large firms benefit more from DTO than small firms. These findings suggest that firms can enhance internationalization performance by focusing on specific digital technologies.