Abstract: According to the samples of 31 Acanthorhodeus macropterus Bleeker collected from Shihe River in Xinyang city,some biological characteristics,such as ring feature,relationship between body length and weight,feeding habit and fecundity were studied in the paper.It was found that,Acanthorhodeus macropterus Bleeker was usually one year old,with the rings on scale parallel and often U-shaped,the formula of relationship between body length and weight was W=0.018L3.0945,as well as the fullness of the f...