The purpose of this study is to investigate 1) which learning strategies effect the acquisition of Japanese accent, and 2) the relationship between successful strategies and motivations toward pronunciation learning, including learner beliefs about accent learning. To achieve those objectives, a questionnaire survey concerning accent learning strategies, motivations toward pronunciation learning and beliefs about accent learning was administered to 210 Thai LI learners of Japanese. Samples of each learner's speech were recorded and analyzed in conjunction with the questionnaire data. The results yielded the following findings: 1) self-monitoring strategies have a positive effect on accurate accent scores; 2) learners are more likely to employ a self-monitoring strategy if they (a) are motivated to improve their pronunciation skills, (b) make conscious effort to improve their pronunciation, or (c) believe that learning Japanese accent is important; and 3) learners who believe that learning Japanese accent is difficult tend not to use any self-monitoring strategies. Based on these results, the author argues that teachers should both understand learner motivations toward pronunciation learning and beliefs about accent learning and provide activities that encourage learners to engage in self-monitoring during pronunciation drills.