Objectives : The objective of this study is to apply the contents of "WaHyul(訛穴 : The errors of acupoint locations"of "ChimGuKyungHumBang" to modern acupoint locations. Methods : The text of "WaHyul" was closely examined and analyzed. "WHO standard acupuncture point locations in the western pacific region" was reviewed based on its contents. Results : According to the analysis, the correct 少商(LU11) was mentioned as a spot appropriately distanced from the corner of the nail root under the skin. This is the most accurate and reasonable synthesis of other related texts. Furthermore, the necessity of defining the locations of all the well points was also emphasized and their locations were mentioned that could be located by the same method. There is no further discussion of other acupoints apart from descriptions of their locations from other texts. Some parts that were pointed out as common errors included not only commonly made mistakes, but errors made in acupuncture texts as were true for 神門(HT7) and 肩井(GB21). The standards of 少商(LU11), 合谷(LI4) and 足三里(ST36) presented in the WHO Standardization are not only similar to what 「WaHyul」 indicated as errors in acupoint locations, but also deviate other acupuncture texts; appropriate corrections must be made. The standard of 肩井(GB21) presents a new acupoint locating method never mentioned before in received classic acupuncture texts and so a rediscussion is in need. Other standards, such as the 絶骨(GB39), had some points of controversy, yet somewhat incomplete while HT7 did not go beyond the bounds of "WaHyul". Conclusions : "WaHyul" can be used to revise WHO standards, and has practical value in modern acupoint locating.