The purpose of this study is to suggest the direction of the development of the working memory assessment tool based on Baddeley(2018)’s working memory multicomponent model. To do this, we first examined the concept of working memory and neurological basis through literature review, and selected measurement factors for development of working memory assessment tool. Based on the selected measurement factors, we analyzed the developed tasks of working memory tools and revealed its characteristics and limitations. We suggest the points to be considered by the developer and the assessment tool user when developing or using the work memory assessment tool and suggested suitable tasks for each work memory measurement factors. This study is significant in that it establishes the neurological basis of working memory and suggests the points to be considered by the developers and the authors, thereby providing a basis for the development of the working memory assessment tool.