In recent years, many companies have shown interest in CRM (Customer Relationship Management), and many software manufacturers at home and abroad provide their software products in the name of CRM. More and more enterprises have realized the important role of CRM software in overall business management, customer management and sales data analysis, and many enterprises have begun to use CRM system as a way of information management.

The goal of this study is the data collection and analysis model in CRM system, and how to develop a B/ S structure CRM system based on J2EE technology. Its main purpose is to search the sales volume and sales volume, transaction quantity, dealer orders, distribution and ranking of annual sales in a given period. The database used in this system will be SQL-SERVER 2000.

The characteristic of this system is that all statistical information can be reported in two ways, either in the form of table or in the form of coordinate chart or pie chart, so that users can understand the required information more directly.