Objectives : Through the study of Chuna of "Naegyung", this study attempts to secure the basis of Chuna therapy. Methods : This study selected sentences such as Kyo, Gyo, Do, Ma, Mun, Bu, Ahn, Ol, In, Jeol, Jo, Chu, Tan(喬, ?, 導, 摩, ?, ?, 按, ?, 引, 切, ?, 推, 彈), etc. to try various studies related to Chuna. Results : As for Chuna in "Naegyung", the origin and role of Chuna, the instruments of Chuna, the mechanism of Chuna treatment, the application range of Chuna, and the notes of Chuna, etc. are summarized in this study. Conclusions : Based on Chuna of "Naegyung", it is necessary to study the development process of Chuna and to create various manual techniques of Chuna.