对长白山北方条鳅的形态特征、生活习性、食性和繁殖力等进行了研究.样本体长4.9～16.5 cm,体质量1.33～47.62 g,雌性体长和体质量明显大于雄性.鱼体肥满度雌性平均为1.09,雄性平均为1.02.主要以底栖的水生昆虫幼虫和钩虾等为食.雌性最小成熟个体体长6.6 cm,体质量3.48 g.繁殖期为5月中旬至6月中旬,绝对繁殖力为3 039～19 793粒/尾. The morphological characteristics, living habits, feeding habits and fecundity of the loach from Changbai Mountain were studied.The sample body length was 4.9 ~ 16.5 cm, the body weight was 1.33 ~ 47.62 g, the female body length and body weight were significantly larger than the male body. The average female was 1.09 and the average male was 1.02, which mainly fed on benthic aquatic insect larvae and hook shrimp, etc. The female minimum mature body was 6.6 cm in body weight and 3.48 g body weight.The breeding period was mid-May to mid-June , The absolute fecundity is 3 039 ~ 19 793 grains / tail.