This study collected 709 X. microlepis and 295 X. davidi specimens, and compared their age, growth and reproduction from September 2010 to August 2012 in the Qiandao Lake. The result showed that age range of X. microlepis and X. davidi were 1-5 years. The advantage age of 84% X. microlepis and 76% X. davidi were 2-3 years. The growth characteristics of length and weight about X. microlepis could be described as W=0.0223L^2.8785(R²=0.9439). The growth of X. microlepis could be described with von Bertalanffy equation as L_t = 41.99×[1-e^{-0.2264(t+0.9746)}],W_t=980.22×[1-e^{-0.2264(t+0.9746)}]^2.7172. The inflection point of X. microlepis growth age was 3.05 years, which body length was 25.33 cm and body weight was 244.78 g; The X. microlepi's sex ratio was 0.956 8：1, The individual absolute fecundity varied was 24 893-132 521 eggs(71 283 on average). The growth characteristics of length and weight about X. davidi could be described as W= 0.0381L^2.7172 (R²=0.9439). The growth of X. davidi could be described with von-Bertalanffy equation as L_t= 41.99×[1-e^{-0.2264(t+0.9746)}],W_t = 980.22×[1-e^{-0.2264(t+0.9746)}]^2.7172. The inflection point of X. davidi growth age was 3.45 years and the corresponding body length was 26.54 cm and body weight was 281.88 g; The X. davidi's sex ratio was 1.4513:1. The individual absolute fecundity was 39 813-228 541 eggs(109 141 on average).