The relationship of Laos - China was divided into 3 sessions. Firstly, before 1949 C.E. in the period of a traditional state, the relationship was in the form of the tribute system that Laos response to the tributary state of China for the national interests of small states deserve with a big state. And the period of being a colony of France, Managed by France made Laos relations system transferred to a state and a state under the rules of the treaties.