Through discussing the thermal processing of 0Cr13 ring forgings，the results were obtained that the best forging temperature range is 9001150 ℃; the smaller forging of reduction is the effective method to avoid forging cracking, and at the same time, for 0Cr13 steel deformation impedance is big when rolling, the double fire rolling is needed，in which the early rolling deformation is small, the unfair elimination is focused on, and the grains are refined by enlarging the plastic deformation of advocate rolling. The coarse grain of ring after annealing was refined by the way of one time normalizing and annealing to satisfy the customers.