语言传播的动因是推动一种语言传播的力量。不同时代不同语言的传播,有着不同的动因,如军事、宗教、文化和意识形态等。有的是单一动因起作用,多数情况下是多种动因复合起作用。历史上汉语传播的动因主要是文化和移民,当前,汉语国际传播最主要的动因是经济。通过研究历史和现在的各种语言传播现象,分析推动语言传播的力量,寻求语言传播的动因,从而更好把握语言传播的基本规律。这种研究,理论上是解决语言为什么能够传播的问题,实践上是推动汉语更好地向国际传播,满足世界人民对汉语学习的需求。 The motivation for language communication is to promote the power of a language. Different languages ​​in different ages have different motivations, such as military, religion, culture and ideology. Some are single motivation to play a role, in most cases a variety of motivation complex role. The main reasons for the spread of Chinese in history are mainly culture and immigration. At present, the main reason for the international spread of Chinese is economy. By studying the history and the current phenomenon of various language transmission, analyzing the power of promoting language transmission and seeking the motivation of language communication, we can better grasp the basic rules of language communication. This kind of research, in theory, solves the problem of why language can be disseminated. In practice, it promotes the better communication of Chinese to the world and meets the needs of the people of the world in learning Chinese.