In cost management, enterprises must choose cost control methods that are suitable to the actual situation of their operation and management in order to improve the quality and economic benefits of cost management. At the same time, with the development and change of the actual situation of enterprise management, the cost control methods applied by enterprises will also change, requiring staff to constantly sum up experience in practical work, and actively introduce advanced technology, innovative cost management methods, to promote the continuous improvement of enterprise cost management level. For equipment manufacturing enterprises, the operation cost management method, the target cost management method can play an active role in the cost management and cost control method. Taking the target cost management method as an example, enterprises can determine production and operation objectives according to historical data and future expectations, formulate budget management plans, and break down the specific cost management objectives of each link according to cost management objectives in the process of production and operation, so as to carry out cost analysis, assessment and evaluation of production and operation links to ensure the realization of cost management objectives. In this process, enterprises can use information management system to record, classify and manage the specific information of production and operation links, and use big data, cloud computing and other technologies for cost analysis, so as to optimize cost control methods and improve cost management efficiency and quality. In addition, enterprises should establish a system of responsibility and responsibility in cost control and cost management, put the rights and responsibilities of staff and departments involved in cost management in place, make departments and their staff clearly define the specific content and responsibilities of cost control and cost management, and use incentive and restraint mechanism to continuously enhance the enthusiasm of staff, so that the cost management program is effectively implemented in practice.