This study focused on examining media exposure, knowledge and attitude of Krabi's tour guides concerning sustainable tourism in Thailand and aimed to find out the relationship between media exposure, knowledge and attitude of tour guides. The study relied on the total population of 81 tour guides who are registered as certified tour guides in Krabi province. The data obtained was analyzed by using SPSS/FW (Statistical Program for Social Sciences) in order to find descriptive statistics (frequency counts, percentages, mean and standard deviation), and by hypothesis testing. The hypothesis testing aimed to gain profound understanding on coefficient correlation between the variables by employing Pearson's correlation at .05 level.