The study on zoogeographical division of freshwater fishes is important for utilizing natural resources and social productivity rationally,and using natural resources fully.There are great differences between different natural geographical zones and between different living surroundings of fishes from the north to the south in Shaanxi Province.China.Based on the difference of composition of fishfauna in different waters and areas and the interelationship between the systematics of fish groups and geographical events in history,and also based on the rational distribution of economy and the possible development of economy in various areas,the zoogeographical division of freshwater fishes in Shaanxi Province can be made.The province can be divided into four regions and two subregions:Ⅰ Windy and Dusty Region of Yulin Ⅱ Loss Plateau and Weihe River Valley Region Ⅱ₁ Loss Plateau Subregion of Yanan Ⅱ₂ Weihe River Valley Subregion Ⅲ Qinling Mountain Region Ⅳ Sothern Plain Region.