Abstract:From “Baiyun Mountain semi-entering the city” to “the mountain in the center of the city”, with the development of Guangzhou, the function of Baiyun Mountain is gradually changing and extending. The problems such as weak slow accessibility of mountain city boundary, blocked interface sight and unbalanced boundary functions are becoming more and more prominent. Based on the park city theory, this paper puts the needs of citizens in the fi rst place, integrates green mountains and blue waters into urban functions, and reshapes the mountain-city interface relationship of “bounded ecology and unbounded function”. Using design techniques of micro transformation, light intervention and low interference, the paper puts forward some mountain-city interface landscape strategies, such as reshaping boundary function with “dual perspectives”, breaking through red line to build an “unbounded” scenic spot, improving “temperature” of the boundary with “one gate and one policy”, and connecting green space and extending green interface, to integrate the boundary functions of Baiyun Mountain and the city, create a high-quality living environment, and reshape a complete landscape city pattern.