The paper is aimed to argue about the wrong concept of the matrix between 'key competencies' and' study fields' in the nation's ” Nine Grades Coherent Curriculum Syllabus” developed by the department of education in Taiwan at 1998. The issues regarding the wrong concept include their different functions, different nature of students' performance, and their relations to each other. The impossibility of the existing matrix leads the researcher to propose a new structural relation between' key competencies' and' study fields', which is more toward parallel, dialogical partnership relationship.