Internal control and control of a company's costs and expenses not only determines the economic benefits of the company as a whole, but is also relevant to the future development and construction of the company. At this stage, various companies are increasingly tightening their requirements for internal control and control of costs, and companies need to manage and control costs from sources. Pre-emptive internal control and control of costs and expenses to discover cost management issues in time, adopt scientific and effective processing and solutions to maintain comprehensive cost management capabilities Improve and develop the company. In addition, enterprise employees learn about internal control and cost and expense management, do a good job of cost control in all aspects of enterprise management, and provide more space to improve the economic interests of the enterprise. We need to continue, thereby promoting health and the sustainable development of the company in the future.