This paper investigates and explores the methods of the curriculum integration on speaking, listening, reading, and writing in Korean language education. Tow domains(a common course curriculum and a optional course curriculum) are given to discuss the methods of curriculum integration for language arts in this paper. First domain which is related to a common course from 1st grade of 9th garde contains two solutions : ⑴ integrating into achievement standards in Korean curriculum, and ⑵ integrating into Key Competencies for future society. Second domain which is related to a optional course curriculum from 10th grade fo 12th grade shows various solutions following that : a naive combining one subject and other subject(for example reading and writing), a real combining subject and subject as a new subject(for example thinking and expression). These solutions of two domains will be mattered and utilized to revise and establish 2015 Korean language curriculum for new paradigm of future.