"The Belt and Road" is an important strategic initiative of China's opening to the outside world. Its purpose is to strengthen the interconnection with the countries along the route by strengthening infrastructure construction

as well as trade and cultural exchanges. In this context

urban planning and design

as an important tool to promote urban sustainable development

has ushered in new opportunities and challenges. Based on this

this paper takes the planning and design in architecture under the background of "the Belt and Road" as the research content to explore the internal relationship between architectural planning and design

and puts forward development measures from various aspects to improve the overall level of architecture.