Abstract: According to the real breeding and production condition for beef line of Luxi in nucleus and commercial, Profit function were constructed on the basis of two-tie open nucleus system with the fixed herd-size, which consisted of 6 animal groups that were calves, heifer, young bull, cow, bull and fatten cattle, including 9 objective traits which were weaning weights, yearling weights, mature cow weight, fatten daily gain, carcass grade, dressing percentage, age of first calving, calving interval and productive lifetime. The profit was estimated for current system and economic values were derived from profit function by partial budgeting method for 9 objective traits. Discounting genetic coefficients were calculated and economic values were standardized by genetic standard deviation to obtain economic weights and relative economic weights of objective traits. The results show that total profit of 6 animal groups were -1 033.95 yuan, and economic values for 9 objective traits were 1.44 yuan/kg, 1.49 yuan/kg, -3.02 yuan/kg, 1.81yuan/g, 315.45 yuan/class, 66.85 yuan /％, -0.54 yuan/d, -4.43 yuan/d, 0.09 yuan/d; and these of relative economic weights were 0.11, 0.11, 0.14, 0.26, 0.14, 0.12, 0.01, 0.08, 0.03, respectively. The results of this study suggest that growth traits should be mainly strengthened to select from beef and labor dur-purpose to special beef direction, and that attention should be give to carcass and reproduction traits simultaneity.