Abstract: The study aims to identify the mediating role of travel intention and denote the theoretical intersection of Social networks, Sustainability Perception and Destination Decision to Vietnam in general. Sustainability perception of the development of tourist destinations is globally recognized, so Vietnam should not be an exception. The booming of Social networks from the internet, IoT, technology 4.0, and artificial intelligence have pushed businesses or fields wide-ranging changed both positively and negatively from communications, entertainment, marketing, sales and even to social lives.