The effects of forging temperature and forged cooling way on the microstructure and mechanical properties of TC21 titanium alloy die forgings were investigated.The results show that the tri\|modal microstructure which consists of a small amount of equiaxed α phase, a large number of basketweave α phase and a small amount of residual β phase is obtained by near β forging process（heat and deform below 10-15℃ of β/（α+β）transition） used in production of TC21 titanium alloy die forgings.With excellent properties at high temperature，the microstructure maintains good properties at room temperature.