从现存的文献资料中我们知道,郑和下西洋担负着两重任务,进行了两方面的活动.这就是:一,恢复和发展明王朝与海外诸国的外交关系;二,进行海外贸易.这两个任务,都是为当时的历史条件所决定的.第一项任务,在历史记载中是很明显的.象朱棣所说的:“朕丕承鸿基,勉绍先志,罔敢或怠.抚辑中外,悉俾生遂,……恒使敷宣教化于海外诸番国,导以礼义,变其夷习.”象郑和所说的:“……命和等统率官校旗军数万人,乘巨舶百余艘,?币往赉之,所以宣德化而柔 From the existing literature we know that Zheng He undertook two tasks under the two tasks of carrying out two activities: First, to restore and develop the diplomatic relations between the Ming Dynasty and overseas countries; and secondly, to conduct overseas trade. These two tasks are determined by the historical conditions at that time. The first task, as recorded by Zhu Di, is as obvious as that of Zhu Di: ” Dare or lazy .Watch China and foreign countries, the news to give birth to, ... ... constant make Fu declared in the overseas countries, guide to etiquette, change its barbarians. “” As Zheng He said: "...... life And the rate of official flagship military tens of thousands of people, by ship more than a hundred ships,