Abstract: Based on the construction concept of “Grand Ecology, Grand Pattern”, promotion of the regional coordinated development of national ecological infrastructure construction has significant strategic significance with the typical characteristics of ecological infrastructure such as multi-scale, multi-element, and cross-region. With the forest region in Greater Khingan Mountains as the research object, we illustrated a new mode of “trinity” ecological-economic-social coordinated development and its scientific path. We first analyzed the barrier function, ecosystem service value, and social benefits of ecological infrastructure. Then, we proposed a new infrastructure construction framework with national parks as the main body and smart technology as the support. The specific implementation paths included: improvement project of ecosystem quality, renovation projects of fireproof road and urban-rural infrastructure, construction projects of smart communication and ecological-protection technology system. Meanwhile, we innovatively designed a government-led and multi-participant funding guarantee mechanism, as well as an ecological economic system centered on the realization of ecological product value. This mode would provide theoretical reference and practical paradigm for achieving regional sustainable development in the new era.

Key words: protection and restoration of ecological barrier, ecological network connectivity, national forest park, ecosystem service, eco-economic system