Apodemus semotus in Taiwan was compared with A. draco, A. peninsulae and A. latronum in cranial and external measurements of 726 museum specimens in order to establish its taxonomic status. The latter three species identified were composed of 14 areas in 105 localities of China, Korea, and Myanmar. A group of semotus, draco and peninsulae was discriminated from latronum by the relationship between the incisive foramen length and ML (=the upper molar row length) in averages of adults. Excepting latronum, a group of semotus and draco was distinguished from peninsulae by the relationship between I-M3 (=the distance between the anterior-most point of the incisor and the posterior-most edge of the third upper molar) and “ratio of the skull” {=(the distance between the occipital condyle and the anterior edge of the first upper molar) — ML]/[(I-M3) — ML]} in averages of adults. Apodemus semotus was located along a regression line for 11 areas of A. draco in log scale relationships between I-M3 and the head and body length or between I-M3 and the tail length in averages of adults. Apodemus semotus in Taiwan did not differ statistically in averages of adults from Areas 1 (Kangding and Gongga Shan), J (Emei Shan and Guancunba) and K (Yangtze River and others) of A. draco, the southwest of Sichuan, China, among which Area K showed similar proportion with A. semotus except for some measurements. It was concluded that Apodemus semotus in Taiwan is designated as A. draco.