Purpose of the study. The innovation ecosystem of the territory was set to be the format of adaptation of the regional innovation system to the digital environment. This management model is rapidly developing, based on the generalization of empirical experience and multidirectional theoretical research. However, the diversity of management concepts requires building a logical relationship in terms of their application to ensure the successful operation of the ecosystem. Therefore, the purpose of this article is to substantiate management approaches and tools that contribute to improving the performance of the territory's innovation ecosystem in the digital environment. Conclusions. It is proposed to use the model for assessing its maturity as an information basis for managing the development of the territory's innovation ecosystem. A comparative analysis of approaches to the assessment of ecosystem maturity has been carried out. The key aspects of assessment are defined, and the expediency of building a structured dynamic complex of assessment models is substantiated. Promising models of ecosystem management (hybrid orchestration, multi-orchestration, multi-tier orchestration) are identified, which allow for non-hierarchical coordination of relatively independent partners in the process of creating a common value. The landscape of trajectories of possible development of the innovation ecosystem of the territory is constructed, which defines a controlled transition between possible states depending on the ratio of maturity levels of each of the participants and the ecosystem as a whole. The importance of taking risks into account for the possibility of realizing the optimal development trajectory is emphasized. A methodological approach to ecosystem risk assessment is proposed, combining: 1) a map of risks of the territory's innovation ecosystem, structured by life cycle stages and management level (an individual participant and the ecosystem as a whole), 2) risk ranking based on the assessment of their impact on the performance indicators of the territory's innovation ecosystem.