ABSTRACT Mainstream technology catching-up studies only focus on how latecomers assimilate the acquired technology from the developed countries in its home countries, paying little attention to their technology innovation activities directly in the developed countries and the interactions between developed and developing countries to overcome first-mover advantages and catching-up with incumbents. This study examines the practices of the rapidly rising Chinese new entrants of electric vehicle (EV) manufacturers, discovers the mechanism and path of cross-market innovation (CMI), established its structural model based on multiple case analysis, proposed three-stage progressing path and three integration mechanisms, and provides new ideas for latecomers to leverage advantages from innovation systems of both developed and developing countries to achieve the change of technological leadership. These new Chinese EV players in study directly go to the USA to innovate on top of acquiring new technologies in the USA, and leverage both first-mover and follower advantages, quickly becoming leading technologically in the areas of emerging technology innovation. The study suggests that latecomers could utilize CMI as their technology catching-up strategy and achieve technological leadership change in both home and developed countries. The CMI model has been tested through the structural equation model (SEM) through structured questionnaire.