The fierce competitive status of the business world has urged innovation activities to transform frommechanistic to ecological and organic. Aninnovation ecosystem consists of multilateral organizations and emerges as a favorable mechanism for value co-creation and sustainable growth. Yet the theorizing of an innovation ecosystem is still at an early stage and in-depth studies from emerging economy leaders are insufficient. This study aims to investigate how an innovation ecosystem is constructed and coordinated from a core-firm based view. An exploratory single case study on the Haier Group is adopted. Through analyzing the multi-bedded units (i.e., six innovation projects/technological breakthroughs), we extract and depict Haier's innovation ecosystem and the ecological niches within it. We highlight an innovation ecosystem that promotes sustainable development and is based on complementarities in technologies and resources, while at the same time integrates non-technological issues such as strategy, culture, institution, and the market. Regarding ecosystem coordination, value appropriability should be ensured to sustain the innovation ecosystem. Moreover, we argue that the ultimate purpose of innovation ecosystem is not to facilitate the realization of one specific project, but rather to improve the overall success rate of innovations within it. This research complements and extends literature on enterprise innovation ecosystems, and provides implications as to the construction, coordination, and sustainability of innovation ecosystems for emerging economy firms.