By calculating the growth lines on the scales and comparing themwith the annual rings on the scales, vertebrae and opercula, studies on the age andgrowth of Hucho bleekeri Kimura had been conducted in recent four years. Theresults indicate:1) The growth lines on the scales of the fish vary along with its ages.Two cirles of growth line grow each month on an average. Moreover, there are clear‘cutting' characterisitcs of annual ring on the scales, and also the age characteristicsare formed by open lines and hidden lines on the vertebrae and opercula.2) Withinfour years, the regression equation of its body length (L) based on the age (t) is:L=189.9468t+26.6934(r=0.991,df=35);the regression equation of the bodyweight(W)based on the age(t) is W=6.2451e^2.1219t)(r=0.987,df=35);the regressionequation of the radius(R)of the scales based on the age (t)is: R=0.7425t-0.1596 (r=0.980, df=35);the regression equation of the body weight(W)based on thebody length (L) is: W=6.7717357×10^-6L^3.0740(r=0.999,df=35);the regressionequation of the body length (L)based on the radius(R)of the scalesis: L=251.0540+71.2288(r=0.991,df=35). 3) Within fouy your years, the average of body lengthincreases 189.95mm/year. The yearly increment ratio decreases with the age incre-ment, while the growth constant, the growth index and the coefficient of fatteningcondition increase with the age increment