Following the top-level plan of the Beautiful China initiative, the construction of beautiful highways is now being integrated with transportation and tourism. The roads' landscape is crucial in constructing beautiful highways, improving their charm and effectiveness. Assessing the landscape's quality provides the foundation for theoretical landscape construction standards. Nevertheless, the absence of consistent evaluation techniques hinders deciding what defines a beautiful highway. Upon reviewing the progress of evaluating road landscape quality both in our country and abroad, it was discovered that the trend in the assessment method is "object evaluation-aesthetic perceptionviewshed estimation-viewscape evaluation", with a growing emphasis on human orientation. Over the years, the evaluation of road landscapes has moved away from government-focused expert systems towards a more humanistic approach, which now considers the general public's aesthetic sensibilities. The method used to evaluate road landscapes still strives to balance between scientific objectivity and subjective visual perception.