The purpose of this independent study was to investigate factors influencing motivation of Thai tourists visiting Black Sand Beach Laem Ngop District Trat Province. The samples used in this study were 400 Thai tourists who came to visit at Black Sand Beach Laem Ngop District Trat Province. The research instrument was a questionnaire to collect data which were analyzed through frequency percentage average values standard deviation t-test and F-test (One Way ANOVA). The study result indicated that there were more male tourists traveling to Black Sand Beach Laem Ngop District Trat than female. Most of them were single and 21-30 years old earning 15000-30000 baht per month. They lived in other central provinces rather than Bangkok and habitually traveled with the families once or twice. They obtained information from the internet and came for leisure activities that had attractively motivated them to find the adventure visit the natural tourist attractions which were friendly and quiet. In conclusion Thai tourists differed in terms of their demographic characteristics such as gender age occupation income educational level residence and status at the 0.05 level of significance; however their traveling motivation was insignificantly different