Abstarct: In today's complex business world, brands have a decisive role in the success or failure of every organization. Brand definitions have always been accompanied by an implicit concept that reflects the value that branding brings to the organization. For this reason, the concept of brand equity was introduced in line with the concept of brand. The breadth and complexity of brand equity has led to do many studies with different outcomes in terms of brand equity and its stimuli, and the research that has been done so far has not been able to reduce these disturbances. Because of multiple interactions between the brand equity dimensions and its contingency nature, there is only one way to resolve this inconsistency which is the development of a comprehensive model capable of modifying and adapting to the conditions of the different industries. Dynamic system can analyze the relations between the components of the model due to the possibility of analyzing feedbacks, and through mathematical relations it allows the model to adapt to the new conditions. Therefore, in the present study, Dynamic model is used to model brand equity. The results of this study showed that system dynamics can be used by managers to make marketing investment decisions through simulating the conditions with better accuracy and better results. It also makes it possible to test these decisions before adopting and without risk tolerance. This case study was conducted on Maahvand Food Company.