This study intends to review ≪The Subject's Linguistic Theory≫, the 1st volume of the Linguistics Collection, published in 2005 by the Institute of Linguistics at the Academy of Social Sciences. The Linguistics Collection was published with the aim of summing up the achievements of the linguistics research conducted by North Korea after its liberation from Japanese colonial rule, and the fact that ≪The Subject's Linguistic Theory≫ was selected as the 1st volume of this series means that this field is the best manifestation of the nature of North Korean linguistics. This study aims to see how North Korea's language perception differs from or same as ours, and eventually to explore the possibility of mutual communication of linguistic studies conducted in the South and the North. In section 1, it explains the overall purpose of the study, and in section 2, it examines the process in which the North's linguistic theory, called “The Subject's Linguistic Theory,” has been formed, and in section 3, it analyzes the contents of ≪The Subject's Linguistic Theory≫ (2005), published as part of the Linguistics Collection. In section 4, we attempt to present the necessity of meta-linguistics and the role of social linguistics through the theoretical questions that this 'The Subject's Linguistic Theory' poses to us.