摘要:Four optimizing methods of equipment cost structure were detailedly analyzed based on their theories. The strengths and weaknesses of the four optimizing methods were analyzed and compared each other. And the characteristics of system dynamics were introduced. It was found that the weaknesses of the four optimizing methods were just made up by the characteristics of system dynamics. It was put forward that system dynamics is better than the four methods in optimizing equipment cost structure at the moment. This viewpoint not only enriches the categories of optimizing methods for equipment cost structure, but also explores a new way for optimizing equipment cost structure in practice.