The distribution maps of wildlife (including 56 species of mammals, 430 species of birds, 30 species of amphibians, and 78 species of moths) in Taiwan were produced using a geographic information system (GIS) through a thorough review on the available literature published between 1978 and 1995. A reference database, including 142 papers or reports on mammal and 130 papers or reports on bird, was created. Distribution database for each species group was established using a 2 by 2 km grid system. Records on the wildlife distribution in all the literature were then referenced to the system. ARC/INFO was used to transform these distribution data into the GIS format. Five hundred eighty-four distribution maps were plotted using ARC/INFO. These data summarized the current available information on wildlife distribution in Taiwan and showed the biodiversity patterns of mammal, bird, amphibian, and moth species. They also indicated the gapareas where vegetation covers are less disturbed by human activities and wildlife survey data are lacking. These maps can be used as a baseline data for environmental impact assessment, environmental planning, and conservation policy decision-making.