Enterprise Resource Planning (ERP) is an efficient t ool which can be used to integrate information about management of enterprise. I t has a lot of functions, such as market management, production planning, finan ce administration, quality control, personnel matters administration, electronic data exchange, business flow optimization and policy decision sustenance. With economy globalization, market internationalization, various and individual requ irement, modern enterprises become more and more to need ERP systems. Different trade patterns, scales,modes of operation and characteristics of products, the c onstruction of the ERP system is different. This article analyzes and discussess the characteristics of production and operation, internal administration models and market requirements about the enterprises that produce communication applia nces. Each piece of production made in the enterprises have small value and vari ed specifications. The enterprises design and produce things according to the or ders from customers. And the quantity of production in a batch is big. And the c ycle that customers remand delivering the goods is short. Assigning material and producing according to orders is this kind of enterprise's principal organizati on pattern. The enterprises buy material according to orders, and negotiate a pr ice in many ways. In connection with this kind of enterprises which produce non -standardized parts, we put forward the construction of ERP system and take som e particular measures. First, putting the ERP system into effect can make enterp rise's goods flow, fund flow, information flow unblocked in time and accurately, respond the change about market quickly and promote the selling of production. Second, it can make enterprise control some links efficiently, such as producin g, selling, operation plan and so on, and can arrange manufacturing reasonably. Third, it can make enterprise achieve official business automation, improve ente rprise's administration and official business' efficiency, supply multiple infor mation service for enterprise's leads and raise enterprise's comprehensive image such as trademark, quality, service and so on. Therefore, establishing the ERP system' structure and putting it into effect is significant to enterprise's runn ing. Enterprise Resource Planning (ERP) is an efficient t ool which can be used to integrate information about management of enterprise. I t has a lot of functions, such as market management, production planning, finan ce administration, quality control, personnel matters administration, electronic data exchange, business flow optimization and policy decision sustenance. With economy globalization, market internationalization, various and individual requ irement, modern enterprises become more and more to need ERP systems. Different trade patterns, scales, modes of operation and characteristics of products, the c onstruction of the ERP system is different. This article analyzes and discussess the characteristics of production and operation, internal administration models and market requirements about the enterprises that produce communication applia nces. Each piece of production made in the enterprises have small value and vari ed specifications. The enterprises design and produce And the quantity of production in a batch is big. And the c ycle that customers remand delivering the goods is short. Assigning material and producing according to orders is this kind of enterprise's principal organizati on pattern. The enterprises buy material according to orders, and negotiate a pr ice in many ways. We put forward the construction of ERP system and take special measures. First, putting the ERP system into effect can make enterp rise's goods flow, fund flow, information flow unblocked in time and accurately, respond the change about market quickly and promote the selling of production. Second, it can make enterprise control some links efficiently, such as producin g , selling, operation plan and so on, and can arrange manufacturing reasonably. Third, it can make enterprise achieve official business automation, improve ente rprise's administration and official business 'efficiency, supply multiple infor mation service for enterprise's leads and raise enterprise's full image like such trademark, quality, service and so on. Therefore, establishing the ERP system' structure and putting it into effect is significant to enterprise's runn ing.