This study attends to the importance of performance standards in teacher education and evaluation system and suggests a primitive guideline for English teaching standards in Korea. For this purpose, first of all, the notion of ""teaching expertise"" and ""performance standards"" are reviewed with the previous studies. Second, this study introduces recent changes in Korean teacher education programs and some efforts to develop Korean teacher standards. Third, teaching standards (for ESL/WL) established by NCATE, NBPTS, and INTASC are reviewed to investigate their domains, standards, and evaluation rubric. Finally, this study addresses some implications and suggestions for establishing English teacher standards in Korea. It is hoped that the findings of this study provide subject-specific information on teacher training and assessment to teacher researchers and education policy makers in Korea.