The article reviews with the goal of research is to find out the factors that create competitive advantage and the factors that affect the competitive advantage of enterprises. The author uses a systematic approach to identify, evaluate, and interpret all research questions available from reputable academic journal sources related to the fields of economics and business. Results from more than 160 selected research articles, the author summarizes the concepts of competitive advantage of enterprises from many different approaches, factors that create competitive advantage including strategies competitive strategy: cost leadership strategy, differentiation strategy, concentration strategy, or a combination of strategies. The research results also show that the resource factor is an important factor in choosing the right strategies for businesses to gain competitive advantage.