Abstract: Rivers are usually sensitive, fragile yet highly valuable ecological corridors. The harmonious balance between city and natural system will only be achieved through ecological restoration and preservation by following and adapting to the natural law of river in our planning and design. An ecological river restoration method adopting river self-recovery by flooding is discussed here, taking the research and study of Hohhot Black River (Dahei He) urban section in time and space dimensions. Based on this ecological system restoration strategy that integrates ecological function and landscape process, a four-dimensional restoration model is established to describe the ecological landscape process intervened by both nature and human, focusing on woods, levee, river plain and water factors.