To evaluate the current status of 〖WTBX〗Sinibrama macrops〖WTBZ〗 population in Qiandao Lake, age、 growth and reproduction characters were studied using 707 specimens collected from July 2008 to April 2009. Ages were determined by reading annuli on scales, The estimated age ranges were between 0⁺-5⁺years for females and 0⁺-4⁺years for males, the age group advantage is 1⁺-2⁺, which accounts 74.1%. The body length and body weight range of population is 9.2 cm-20.4 cm, 18-195 g. The growth trait of the length and weight was similar as W=0.0248L^2.8985（r=0.9482）, The body growth pattern can be well described by von Bertalanffy equation and they were L_t=24.04［1-e^{-0.1477(t+2.8540)}］，W_t=249.38［1-e^{-0.1477(t+2.8540)}]^2.8985, The growth age at inflection point was 4.35 year old and the corresponding body length and body weight were 15.74 cm，73.13 g. The sex ratio for female and male is 1.27∶1, The individual absolute fecundity varied from 1 870-18 665 eggs(average 6 279), and the individual relative fecundity(FL) varied from 38-215 eggs/g (average 98), The gonadosomatic index for female and male is 22.85%,12.56%, and the female fish are total spawners. Growth indexs in general declined with age growth, and the condition factor reached in its peak in March. According to the body length and body weight in inflexion there had overfished condition, therefore, the countermeasures should be taken such as restricting the individual which is below 4 age, in order to protect the resources of Sinibrama macrops.