Khamkhien (2010) stated that English language teaching has developed professionally worldwide as the consequence of the high of English user. It’s followed by the advanced interest of teaching English as foreign language in many developed countries, such as Thailand. Some research reported that the four of English skills including, listening, speaking, reading, and writing in Thailand is lagged behind from other ASEAN countries. These are some reasons about English performance of Thais in teaching and learning speaking. First, English speaking or oral communication in English of Thai students deemed to be difficult because English is not their native language. Second, most of Thai learners need their English to sound as native-like as possible which is a prestige norm of spoken English. This scenario seems to limit their choice of their exposure to English. Finally, another dimension which should be taken into account lies into English pronunciation of Thai teachers of English. These serious problems are exclusively important, leading to a large volume of studies focusing on speaking ability of Thai learners.