Abstract: In the era of the digital economy, it has been prevalent for firms to create values and obtain a competitive advantage by integrating external and internal resources through digital platforms. Yet, it remains unclear how values can be created by using digital platforms. Drawing on the resource orchestration theory, we identify two managerial actions, the digital platform architecture flexibility (PAF) and integration capability (IC), to explain how them work together to improve competitive performance in digital platform context. Based on analysis of 129 samples of Chinese firm, the results indicate that 1) the digital platform architecture reusability (PAR), compatibility (PAC) and extensibility (PAE) have positive effects on the competitive performance (CP); 2) the IC of digital platform acts as mediation role in the effect of PAC and PAE on CP. These findings extend the applicability of the resource orchestration theory in the digital platform context, which bringing more insights to the research on the mechanisms of using digital platforms to create values.