Abstract: In recent years, the agriculture industrial policy of nation and Autonomous Region advocated vigorously developing the grass food domestic animal. Therefore, the Xinjiang beef industry welcomed the unprecedented development opportunity, but Xinjiang's beef industry also had many restriction factors in the development. This article uses the Michael E?Porter "the diamond system model” to carries on the concrete analysis to the Xinjiang beef industry core competitive ability from six aspects——the element of production, the demand condition, the correlation and the support industry, the enterprise strategy structure and the competitor, the government, the opportunity，and obtains the conclusion which the superiority of the Xinjiang development beef industry basically concentrate in the preliminary essential factor, but the important influence factors to the industrial development are in the relative inferiority. From above all, we proposed the way to promotes the Xinjiang beef industry core competitive ability from aspects of breeding improved variety beef cattle, enhance beef cattle production capability, policy support, strengthening socialization service as well as brand strategy.