Objective : There are several terms on palpation such as cunkou(寸口), qikou(氣口), maikou(脈口). In traditional medicine dictionary or even WHO international standard terminologies on traditional medicine in the western pacific region, there are no discriminations about them. However, there are some differences in usages of cunkou, qikou, maikou at Maijing. Method : First, we searched usages of term, cunkou, qikou, maikou in Huangdineijing(黃帝內經) and Maijing and compared the meanings. Result : Meanings of cunkou, qikou, maikou in Huangdineijing are pair with renying(人迎) and inch-bar-cubit on wrist. Meanings of cunkou in Maijing are pair with renying, inch-bar-cubit on wrist and only inch on wrist. Meanings of qikou, maikou in Maijing are inch-bar-cubit on wrist. Conclusion : Cunkou, qikou, maikou are known as same terms. However, scholars have to be cautious when they use cunkou, qikou, maikou term and comprehend those in book.