The questionaries are all about problems of word stress in English pronunciation of Thai learners. In this result, it would be divided into important of English pronunciation, develop of English pronunciation and cause of problem English pronunciation. Most students agreed with the questions about importance of English so that they thought English pronunciation is important for them. Most students told with the questions about how develop English pronunciation so that they chose many answers whether it be watch youtube pronunciation videos, try to imitate spoken English, practice hearing the sound of English and talk with foreigners. Then most students told with the questions about cause of problems English pronunciation. It could depend on personal such as English pronunciation is not clear and worry about grammar too much.