Although several prior studies on the selection and grading of elementary school vocabulary, it is difficult to continuously examine what changes have been accumulated from the vocabulary established by each research achievement. The basis for selection and level setting and adjustment of educational vocabulary suitable for the level of today’s elementary school students is also difficult to generalize from the prior research results. It is also a limitation that no feasibility analysis has been conducted for the listed or selected vocabulary, and there is no evidence-based verification of the level setting. For the selection, grading, and grading of elementary school education vocabulary in this study, an elementary school education vocabulary corpus was established to carry out the initial grading. Further, the grade correction was designed based on the analysis of vocabulary evaluation results for elementary school students. Typically, the elementary school education vocabulary corpus was established with textbooks’ vocabulary appearing according to the previous curriculum. Furthermore, the vocabulary was extracted through a meta-analysis of the Korean dictionary heading for elementary school students. The grading was then carried out based on the information on textbook appearance, the results of grading prior research, and the expert council’s judgment. For the graded vocabulary, the online evaluation of vocabulary for elementary school students will be conducted to justify the evidence-based assessment. Based on the students’ vocabulary evaluation results, it can be expected that a valid and reliable grade correction will be implemented based on data and expert review.