this paper aims to analyze the problems existing in the visual design,fusion design of highway service area,from the perspective of visual design,put forward into the regional culture elements,using regional color,optimizing regional material,strengthen the humanistic care to build unique regional characteristics of service area design,in order to provide strong support for the construction of free trade port in Hainan and reference.These strategies will not only help to improve the overall image and quality of the service area,but also promote the spread and inheritance of Hainan culture,and promote the sustainable development of the local economy and tourism.At the same time,it highlights the local political,economic,cultural and ecological environment,which is also the embodiment of the national cultural soft power.In this context,the corresponding improvement strategies are put forward.