Digital platform ecosystems serve as key drivers of digital economic development, but the internal mechanisms of “leapfrog evolution” for digital platform ecosystems have not received enough attention. Based on the modular system theory, it constructed an evolutionary model of the digital platform ecosystem model with the subsystems of “creation, innovation, and business” as the core, while employing a system dynamics model to investigate the differentiated roles of the drivers. It finds that, from an ecodynamics perspective, the intensity of coercive and induced drivers influences the behavior of subsystems in self-evolution and interaction, thereby instigating alterations in the system's evolutionary state; specifically, when significant forced driving factors are dominant, the system may experience "leapfrog" evolution; furthermore, digital technology drives the first leap from digital platforms to platform ecosystems, marking the commencement of system evolution. The innovation subsystem amplifies the degree of evolutionary change and is the key to a further leap. The results enrich the internal mechanism of the digital platform ecosystem leap, which is triggered by the different roles of driving factors. Offers a decision-making basis for system subjects to engage in, and the achievement of high-quality ecosystem development is provided by the research.