The purposes of this study were to: (1) develop an English training course for local wisdom inheritance of One Tambon (Village) One Product (OTOP) in Amphawa district, Samut Songkhram province; (2) compare the English achievement results of the participants before and after the English language training; (3) study learners' English performance, including vocabulary and the communication about process of making Thai coconut palm sugar presentation with determine criteria; and (4) study learners' satisfaction with the training course. The sample participants were 10 OTOP entrepreneurs in Amphawa District, Samut Songkhram Province who were selected by voluntary selection and they were interested and applied for the training course and all of them hold a bachelor degree. The research instruments were questionnaire assessing learners' training needs, an academic achievement test, a performance evaluation form, and a satisfaction assessment form. The statistics for data analysis were percentage, mean, standard deviation and content analysis. The findings were as follows: (1) the developed an English course for Local Wisdom Inheritance of One Tambon (Village) One Product (OTOP) in Amphawa District, Samut Songkhram Province contains 9 components including conception of curriculum, principles, objectives, structures, activities, duration, teaching materials, evaluation and assessment, and expected outcomes; (2) the average scores from English achievement test after using the curriculum in English training course was higher than before testing; (3) learners' English performance, including vocabulary and the communication about process of making Thai coconut palm sugar presentation, was at the high level (83.33%) which was higher than determine criteria; and (4) learners' satisfaction with the English training course was at the highest level ([x-bar] = 4.70).