This paper aims at exploring system and grade in education contents in korean language history. The criteria of selecting contents are fitness, usefullness, freqency, interest. Fitness and usefullness are very important. And criteria of grading contents are learnability, simplicity, valuability, teachability. Learnability and simplicity are important, and valuability based on all education.
Results of reflecting on system and hierarchy are as follows: expressions relating modern language and old language, hunminjeongheum(or hangeul) and its superiority, history of korean language, korean characteristics in various periods, old korean literature. These contents can be graded according to school systems. Of course, teaching periods and methods will be changed according to deep degree and characteristics of each contents.