The evaluation of vietnamese characteristics is assessments and comments on thinking, personality, psychology and social studies of the vietnamese through different periods of time and abroad. These assessments are cited at different historical times, starting from the beginning of the twentieth century, including a significant part of the role and duality, advantages and disadvantages, of thinking, character, habits, and habits of vietnamese people. The sum - based reviews of other studies are to identify individuals or logic of famous scholars. The two sides of vietnamese have been recognized by the majority of scholars and confirmed in psychological, cultural, social and historical studies. The common characteristics of vietnamese personality, psychology and practices that authors have pointed out are not static but change by changes in social conditions along with economic, cultural, ideological and academic exchanges
