Vietnamese folk-songs have a plentiful, powerful vitality, and a special attraction due to an open, free and confident receiving from the foreign cultures. It shows two basic features in Vietnamese behavior culture, flexible and harmonious. Harmonizing but not dissolving and knowing how to prosper oneself in the mixability is the best choice for the cultural development way of Vietnamese people, in general
and South Vietnamese people, in particular, with folk-songs as a typical proof.