In this essay, Korean education means teaching Korean language as a mother tongue. It is different from teaching Korean language as a second language. This essay focus on principles of Korean education and what its curriculum should be. Language ability is human`s specis-specific quality which is inherent. Everyone can speak mother tongue after 2-3 years old without a planned education. He knows some words and can apply rules to make sentences. Children can speak many sentences that is not learned from their parents. Moreover they speak with instantaneousness. What Korean education teach one who already can speak Korean? Unlike speaking and listening ability, reading and writing ability is not inherent. To get reading and writing ability, one must have repetitive learning and practice. This means that Korean education place more importance on reading and writing. And Korean education aims at higher language skills. For greater capacity of language performance, one need not only rules and express skills but broad knowledge base, which may involve every subject. But there should be the knowledge that only can be obtained by Korean education such as the knowledge in literature works. Therefore literature works are good texts for Korean education. According to Weisgerber, mother tongue is one kind of important cultural properties. By learning mother tongue one can have valuable thinkings and minds of ancestors. These are also what Korean education must do. Korean education encompass high language skills and some kind of knowledge and valuable thinkings and minds. It is important to thinking practice and mind building(geistesbildung).