The genetic parameters and breeding values for growth traits (including body weight, body length, and body height) of the largemouth bass () were estimated using the best linear unbiased prediction (BLUP) method. 0.29±0.08 for body weight and 0.31±0.08 for body length; at six months of age, heritability was 0.28±0.10 for body weight, 0.26±0.10 for body length, and 0.29±0.10 for body height. These heritabilities indicated that there was a great potential for selective breeding in the growth traits of largemouth bass. At four and six months of age, the genetic correlations between body weight and body length were 0.750±0.082 and 0.790±0.094, respectively. At six months, the genetic correlation was 0.820±0.081 between body weight and body height and 0.990±0.001 between body length and body height. These genetic correlations indicated that selection for body weight would result in positive responses in other traits. orrelation analysis of different estimated breeding values (EBVs), at four and six months, gave correlation coefficients of 0.923 and 0.919 between comprehensive EBV and length EBV, and 0.914 and 0.890 between weight EBV and length EBV, respectively. These correlation coefficients showed that there was little difference in ranking for largemouth bass when using comprehensive EBV compared to one-trait EBV. The above parameters and breeding value results provide a theoretical basis and technical reference for the selective breeding for largemouth bass.