In order to improve market competitiveness, we must have both good product quality and good customer service. If an enterprise wants to respond to the customer's product demand in time, produce quickly according to the demand and deliver on time, it must have a good plan, so that marketing and manufacturing can be well coordinated. Invoicing management is the core link of commercial enterprise management, and it is also the key to whether the enterprise can achieve benefits. If we can achieve reasonable production, timely sales, minimum inventory and reduce the backlog, then enterprises can achieve the best benefits. It can be seen that the correctness of the management decision of purchase, sale and storage directly affects the economic benefits of enterprises. [1] The goal of system development is to realize the systematization, standardization and automation of enterprise inventory management. The system has many functions, such as production and marketing connection, product inventory management, customer management, supplier management and so on, to meet the needs of efficient management of enterprises. The introduction part of this paper briefly introduces the structure and development of database application system, and analyzes the characteristics and tasks of scientific research management information system design. The first chapter introduces the system analysis to be completed, so that readers can understand the feasibility analysis, demand analysis, data flow diagram and E-R diagram of the system. The second chapter introduces the related technologies of the system, mainly including the development background and tools of the system, and introduces the related technologies and usage methods of the development tools. The third chapter introduces the overall design of the whole system, including the system module diagram and database design, including the summary structure and logical structure design of the database. Then it introduces the related key technologies, including multi-page form design and fast query of data records. The fourth chapter is the detailed design of this system, including program flow chart, main interface design, menu design, system login window design and main function module design. The summary part introduces the design and programming experience, and points out the shortcomings and improvement direction of the system design. 1. system analysis 1. 1 feasibility analysis 1. 1 project background to improve market competitiveness, we must have good product quality and good customer service. If an enterprise wants to respond to the customer's product demand in time, produce quickly according to the demand and deliver on time, it must have a good plan, so that marketing and manufacturing can be well coordinated. Invoicing management is the core link of commercial enterprise management, and it is also the key to whether the enterprise can achieve benefits. If we can achieve reasonable production, timely sales, minimum inventory and reduce the backlog, then enterprises can achieve the best benefits. It can be seen that the correctness of the management decision of purchase, sale and storage directly affects the economic benefits of enterprises. In the case of manual management, it is difficult for salespeople to make correct supply commitments to customers. At the same time, the production department of an enterprise lacks accurate production plans, and it is difficult to correctly reflect the current production situation and market demand to the production department. The communication between departments is often not smooth, which is very unfavorable in a highly competitive market. Invoicing management system appears in this situation. It uses computer technology to combine the production, inventory and sales of enterprises, connecting production and sales, and improving the efficiency and benefit of enterprises. 1. 1.2 The goal of realizing target development is to realize the systematization, standardization and automation of enterprise inventory management. The system has many functions, such as production and marketing connection, product inventory management, customer management, delivery management, production plan management, inventory management, order management and so on, which meets the needs of efficient management of enterprises. The management system is built with PB, and the system is queried and accessed with SQL language. After implementation, the following objectives should be achieved: computer information management. The operation is simple and easy, and the query is convenient and flexible. The system integrates procurement, sales and warehousing. The system has strict internal control and high reliability. Detailed record audit makes the security and confidentiality of the application system more perfect. The system has clear architecture, beautiful and friendly interface, comprehensive functions and safe and reliable data storage. Through the implementation of the system, the management level of supermarkets and the quality of employees can be improved. 1. 1.3 system flow chart 1.2 demand analysis 1 the goal of system demand analysis system development is to realize the systematization, standardization and automation of enterprise invoicing management. The system has many functions, such as production and marketing connection, product inventory management, customer management, delivery management and inventory management, to meet the efficient management of enterprises. The main functions of the system are: basic information management: commodity information, customer information, supplier information sales management: sales registration, sales inquiry, sales report, sales statistics procurement management: warehousing registration, warehousing inquiry, warehousing report, warehousing statistics inventory management: inventory inquiry, inventory counting, inventory report financial management: financial report, financial closing system management: operator management, authority management 1 .2.2 Analysis of database requirements According to the above system function analysis, we can get that the database consists of the following parts: inventory information table (kc_tab), operator information table (czy_tab), supplier information table (gysxx_tab), customer information table (khxx_tab), warehousing registration form (rkdj_tab) and commodity information table (SPXX).