ERP (Enterprise Resource Planning) is an important means to improve the efficiency of enterprise management. It is not only the application of software system, but also represents a brand-new management concept. Its management concept based on supply chain and process is completely different from the traditional management concept based on functional positions. The standardization of process is a necessary condition for enterprises to successfully implement ERP. Only after BPR business process reengineering can enterprises implement ERP and produce expected benefits. For manufacturing enterprises, it involves all aspects of production and management. Enterprises need to effectively integrate financial data and business data when implementing ERP. After business information is input into the system, financial information can be generated in real time and accurately, and the unification of logistics and capital flow can be realized. If the business process can't be reorganized or optimized, and the process can't meet the requirements of standardization, the advanced concept of ERP can't be fully displayed, its due efficiency can't be brought into play, and it's just a simple application of the software system. Therefore, reorganizing or optimizing the accounting process according to the business process is an essential and important link in the implementation of ERP. This paper studies the core link of enterprise operation, that is, the flow process of materials and information in the supply chain, and the method of realizing the automatic conversion of business information and financial information by ERP system. On this basis, designing the optimization strategy of accounting business process under ERP environment is the problem to be solved in this paper. Design of accounting business process optimization technology in ERP environment. ERP system consists of several modules, and its processing process is synchronized with logistics. Every link of enterprise production is accompanied by logistics and information flow. In logistics, all kinds of documents are synchronously input into ERP system and transmitted to financial subsystem, which automatically generates the data needed for query and management decision. The financial subsystem in ERP is responsible for the integrated management of accounting information, that is, by establishing data model and database, using unified data management and common data interface to realize data integration, management and control. The processing mode of accounting information has changed from the traditional "original voucher-accounting voucher-account book-accounting report" to the internal management mode of "original voucher-database-account book report". Accounting business process optimization technology mainly includes automatic voucher triggering technology, accounting business diversified information processing technology, engine technology and online transaction processing technology. 1, Automatic Voucher Trigger Technology The design idea of automatic voucher trigger is: when economic business happens, the department information processor inputs the document information into the database, and the changed business information in the database is transmitted to the financial subsystem of ERP, that is, the voucher template is automatically triggered, accounting data is formed according to the relationship between business and account, and then the data such as the summary, account, date and amount of the business document are filled in the corresponding columns of the voucher. Accounting vouchers will be automatically generated and displayed or printed in the form of vouchers. From the entry of the original voucher (document information) into the business subsystem to the formation of accounting voucher, and then to the generation of account book, its essence is to automatically trigger the formation by calling out the contents of records and fields from the database by specifying conditions. In this process, the source of data such as vouchers is business documents, which ensures the accuracy and consistency of data because of the uniqueness of data sources. 2. The data stream stored in the diversified financial database of accounting business information processing technology not only implies the data of financial accounting matters that change the assets, liabilities and owners' equity of enterprises, but also contains the detailed data of strategic decision-making, planning, control and performance evaluation of enterprises required by managers, showing diversification. Information users can choose various accounting methods for reprocessing according to their own decision-making needs and generate the required decision-making view. By introducing event-driven rules, the accounting voucher generation method is formed, and the diversified process of accounting business is formed. The rule is divided into three parts: events, conditions and processes. When an event occurs, select a condition from various possible conditions and execute the corresponding process. The action may be a template for applying credentials to generate mechanism credentials. 3. Engine Technology Engine (Engineer) is a program segment connecting database and application system, which is used to collect, process and output accounting-related information. It sets the parameters of the whole application system operating module based on the database language, can reset the database structure, and can actively guide the design process. The engine is an interactive relationship with users, which has a high degree of autonomy and will protect the system from improper design. Through the engine, the automatic transmission of data in each link can be established, and the linkage and synchronous processing of each subsystem can be realized. 4 online transaction processing technology transaction refers to a series of operations performed as a single logical work unit. It is a mechanism to ensure that "success at the same time means success, and failure at any step means complete failure". A transaction usually includes three actions: start the transaction, commit the transaction and cancel. All database modifications that occur from the start of the transaction to the submission of the transaction can only be submitted to the database for saving. As long as an action fails, it must be restored to the state before modification. In ERP, it is realized by online transaction processing (OLTP). For example, when depositing in a bank, lock the account number first, and release the account number after the deposit process to ensure that the account number is consistent with the amount. Second, the optimization design of accounting business process in ERP environment ERP is developed on the basis of MRP (Manufacturing Resource Planning). For manufacturing enterprises, the core is the supply chain, which includes three links: procurement, manufacturing and sales. 1. Optimization of supply chain accounting business process The target enterprise's process from procurement, transportation, processing, manufacturing and distribution of raw materials and parts to final delivery to customers is regarded as an interlocking chain, which is called supply chain. We don't look at every enterprise in the chain in isolation, but look at the whole supply chain from suppliers, manufacturers to sellers and users as an organic whole. The supply chain process is mainly composed of logistics, information flow and capital flow. In the ERP environment. Information flow is the core, logistics is the guarantee, and capital flow is the means of realization. The effective interaction between them constitutes a complete synchronous processing model. The shortcomings of traditional supply chain management include: weak basic management, irregular process and system; Business processing efficiency is low, and departmental responsibilities are unclear; The financial business is out of touch, the business analysis is lagging behind, the inventory is large, the information transmission speed is not timely, and the processing demand is single. In the ERP environment, enterprises can keep abreast of their production and inventory. Respond to customers' needs quickly, effectively control the sales price, manage the whole process of order, delivery, delivery, invoicing, control the receipt and delivery of materials in coordination with procurement, sales, production and other businesses, grasp the inventory at any time, ensure the consistency of accounts and facts, prevent the backlog of dull materials and inventory, and reduce the inventory cost. Provide data support for enterprise decision-making. The optimization objectives of supply chain accounting business process are: standardizing the process, removing human factors and ensuring the perfection of basic data; Reduce inventory. Strive to achieve zero inventory through JIT (agile manufacturing); Accurate transmission of information in the system. Feedback * * * enjoyment in time, cooperate with financial system, automatically coordinate supply and demand, and realize seamless connection of supply chain. 2. Optimization design of supply chain accounting process The basic idea of optimization design of supply chain accounting business process is to integrate supply chain business process and accounting process, take business process as the guide, and use automatic voucher triggering technology, business diversification technology, engine technology and online transaction processing technology to realize collaborative processing and real-time generation of financial and business information. Data information can be entered by one party, used by many parties, and data can be enjoyed. There are three main steps in the integration process: basic data input design. It mainly completes the input of basic data such as supplier information, department information, employee information, material information, unit of measurement information, account information and material supply information. The accuracy of basic data is directly related to the quality of accounting information, so it is necessary to input accurate and complete basic data. System parameter design. This is the key step to optimize the design. ERP system should not only ensure universality, but also meet the special needs of users. By setting a variety of transaction processing methods, users should carefully determine the parameters according to the actual situation of enterprises, and realize the transformation from general software to personalized customization. For example, the selection of estimation business processing method, the setting of warning number and the setting of multi-level approval. Of course, the design difficulty of these parameters depends entirely on the system parameters provided by the ERP system itself, and the design principle and operation difficulty of different ERP systems are very different. Design of voucher template. That is, set the corresponding accounts (including general ledger accounts and subsidiary ledger accounts) and the debit and credit relationship on the accounts. Voucher generation is the interface between business system and financial system. The system realizes the integration of financial and business data by generating vouchers in real time, and the setting of voucher template is the key to realize the automatic generation of vouchers in real time. When economic business occurs, the corresponding voucher template is automatically selected through the voucher trigger mechanism, and the voucher is automatically generated. Voucher templates of supply chain mainly include purchase receipt voucher template, sales delivery voucher template, purchase expense invoice voucher template, payment voucher template, collection voucher model and transfer voucher model. Through the implementation of the above three steps, the integration of procurement, production, warehouse management, sales, finance and other departments related to supply chain business can be basically realized. Engine mechanism plays a very important role in the integration of financial data and business data in ERP system. It detects data changes in the database in real time, and once the amount field changes. Then it will automatically trigger the corresponding code, automatically handle the bookkeeping and posting business, provide relevant report data for the report system, and the results will be stored in the database or displayed in the form of a form. At the same time, through its intelligent analysis program, it will provide data support for the corresponding management accounting report system and generate various reports, reports and other information needed for decision-making. Third, realize the optimization of supply chain accounting business process. The development of network and database technology provides technical support for the integration of supply chain information, which makes it possible to realize the advanced management goal of ERP. The basic idea of supply chain business process optimization is to integrate enterprise business processing and accounting information processing, integrate financial accounting and management accounting functions, and build an integrated supply chain process system from a global perspective. Take the procurement link as an example to describe it in detail, and other businesses also use this method. The procurement links of enterprises include obtaining raw materials and paying cash or bank deposits, which usually include basic links such as ordering, reminding, warehousing, returning goods, reconciliation and payment. According to the idea of business process reengineering, enterprises should take enterprise goals as the guide, adjust business processes and organizational structure, and break the boundaries of traditional functional departments. All the steps of a business are completed by one person or a work team, so that decisions can be made where information is generated. Accounting in ERP system has also become very simple, and the whole accounting process can be completed automatically by the system only by the staff pressing the button to give instructions. In the ERP environment, you can even set the voucher to be automatically recorded by the system after it is approved. In fact, the accounting operation only orders the computer to make a mark on the records in the corresponding database. With the improvement of ERP system, corresponding accounting voucher templates are set for various possible business situations. When economic business happens, the system can automatically generate accurate accounting vouchers. Or directly register the account books according to the documents. For the handling of accounts payable in the procurement process, follow the principle of making decisions where information is generated. While entering the invoice, the system can automatically check the relevant purchase orders and receipts, and make tripartite matching. If the matching is successful, the payment can be executed without waiting for the payment instruction from the finance department. That is, processing business documents and related accounting business information. When this process is completed, the whole procurement process is over. Four. Conclusion In the case of traditional job division, workflow is divided into various simple tasks, and managers focus on improving the efficiency of a single task, ignoring the ultimate goal, that is, meeting the needs of customers. By optimizing the design, we can form an overall idea, confirm the workflow of the enterprise as a whole, and pursue global optimization instead of individual optimization. Through the integration of business information processing flow and accounting information processing flow, the integration of business processing and accounting information processing is realized by using the idea of integration. Make the accounting business cooperate with other businesses, realize the optimization of the whole procurement process and accelerate the improvement of the overall efficiency of the enterprise. However, to achieve the overall goal of an enterprise, it is far from enough to have an excellent ERP system, and modern management concepts are more important.