The role of English in Thailand as an open developing economy is crucially important. However, the evidences have shown that English skills of general Thai citizens are critically poor. English Proficiency Index(EF, 2011) of Thailand is categorized as “very low” measured by EF, the world’s largest language training company, and overall TOEFL(ETS,2010) score indicates that the mean score of Thai test takers is below average of Southeast Asian countries and continue to fall as well. Moreover, in the 2011 IMD World Competitiveness Report, Thailand was ranked 54th out of 56 countries globally for English proficiency, the second-lowest in Asia.