In the era of rapid technological iteration in the digital economy, breakthrough innovation is the main source of core competitive advantage for enterprises. Based on Upper Echelons theory and Resource-based theory, using A-share listed companies in the computer, communication, and other electronic equipment manufacturing industries from 2010 to 2021 as research samples, this study explores the impact of diversity of executive team career experience on breakthrough innovation performance, and examines the mediating effect of cooperation openness and the moderating effect of absorptive capacity. The results indicate that the diversity of career experience in executive teams not only has a significant positive impact on breakthrough innovation performance, but also has a significant positive impact on cooperation openness; The cooperation openness has a significant positive impact on breakthrough innovation performance, and plays a partial mediating role between the diversity of career experience of executive teams and breakthrough innovation performance. The absorptive capacity positively regulates the relationship between cooperation openness and breakthrough innovation performance. This study provides a theoretical reference for enterprises to improve breakthrough innovation performance from the perspective of executive experience.