||Jin. Ming-Hao & Zheng, Mei-Xian. (2020). A study of content validity on grammar gap-filling tests in NMET II. The Linguistic Association of Korea Journal, 28(3), 71-81. Based on Bachman and Palmers (1996) Framework of Task Characteristics and Lis (1996) Test Point Validity Theory, this paper aims to analyze the test point quality and content validity of grammar gap-filling tests of the 2014-2019 National Matriculation English Test paper II (NMET II), in particular, concerning the content validity of tests in terms of the characteristics of input and expected responses, and test point validity. The results show that the grammar gap-filling tests in the NMET II are all in line with the language knowledge part required in the New Curriculum Standard and the Testing Syllabus and have a relatively high content validity. The test points are evenly distributed and reasonably designed, which can test students' grammar ability under the guidance of discourse with well designed length and reasonable test point validity. However, there are still some problems to be improved, such as the lack of man and nature and practical essay writing in terms of topic and genre. The readability fluctuated greatly. The expected response type is restricted to limited production. Furthermore, test points designed with discourse level and meaning factor are less examined, and lacking of test points used to measure a higher grammatical ability.