This study aims to find out how Electronic Word of Mouth (EWOM) influences the Intention to Travel to Vietnam of Foreigners. Based on the theoretical backgrounds and results of the former researchers, this study constructed a comprehensive model framework to show out the interrelationships among the following research variables: Electronic Word of Mouth (EWOM), Positive Emotions, Destination Image, Tourists' Attitude and Travel Intention. The Stimulate-Organism - Respond (S-O-R) theory is also integrated into the framework. The results of this study suggest how tourists' travel decision-making process is influenced by Electronic Word of Mouth (EWOM) and other variables. Besides, the implications and future research issues will also be discussed.