函件业务是邮政的核心和基础业务 ,函件业务的预测对制定邮政企业发展规划具有十分重要的意义。首先介绍了影响函件业务量的主要因素 ,然后给出了建立函件业务量多元回归模型的方法 ,并用近年来的有关数据建立了函件业务量实际模型 ,对近三年的函件业务量进行了预测 The mail business is the core and basic business of the postal service. The forecast of the business of the mail business is of great significance to the formulation of the postal business development plan. First of all, it introduces the main factors that influence the business volume of the letter, and then gives the method of establishing the multiple regression model of the mail business volume. Based on the relevant data in recent years, a practical model of the mail business volume is established to predict the business volume of the mail business in the recent three years