Abstract: Since the promulgation of the Landscape Law in 2004, Japan has accumulated considerable experience in regional landscape planning in diversified scales and types. It could provide enlightenment for the planning, coordination and control of regional landscape in China from the perspective of the landscape architecture discipline, considering that China has attached increasingly greater importance to the construction of large-scale ecological space system across administrative boundaries in its territory spatial planning. Based on Japan’s regional landscape, this research interprets, clarifies and compares the concepts of regional landscape, then analyzes the orientation, objectives, content composition, coordination and control mechanism of regional landscape planning in Japan, as well as the control and declaration requirements of regional landscape planning with the Kanmon Strait case. It puts forward enlightenment in five aspects related to the legal system, territorial space, planning management and control, multi-party coordination, and public participation for China’s regional landscape planning based on the experience from Japan.