The Taiwan field mouse, also called Formosan wood mouse (Apodemus semotus), is a species of rodent in the family Muridae. It is found only in Taiwan. The Taiwan field mouse is primarily distributed in the montane region between 1,400 to 3,000 m. They inhabit various habitat types, such as natural or planted forests, grasslands, farms, and campsites, and are omnivorous feeding on plants, insects and fungi.