This study aims to consider the common ground and the differences among Standard Curriculum of Korean Language for Overseas Korean Schools(OKS), Standard Curriculum of Korean Language for Overseas Foreign (Elementary and Secondary) Schools(OFS), and Standard Curriculum of Korean Language for International Use(IU) based on the category of scope, sequence-setting, descriptive principles, and application proposals. It also discusses the issues which can be raised in the mutual liaison or integration of the Standard curricula. As a result of considering the three standard curricula, it is likely that IU, aiming for comprehensive cover, can provide the reciprocal connection with the two other curricula in terms of the design of the category of scope. It maybe a decisive reason that IU aims at inclusive application. However, the probability of a mutual liaison with the three Standard curricula seems to be low, since the sequence-setting is considerably different in kind with one another. It is possible that the "Principle of Correspondence", which OFS aims for, shows considerable difference from the two other curricula. In order to solve this problem, the correspondence of the sequence criteria between Common European Framework of Reference for languages(CEFR) and TOPIK must be studied, and the detailed segmentation of lower level and how to correspond to other curricula must also be suggested. For future consideration of standard curriculum and the issue for the mutual liaison with other standard curricula, the following topics are suggested to compare：the category of scope, the setting up of sequence, the relationship between levels and the number of school hours, and the criteria for the segmentation of sequence. Through this research, a better way of mutual liaison between the Standard Curricula of Korean Language series can be achieved.