Hot and cold compound forming process was selected to produce spur bevel gear. The importance of pre-forging gear tooth profile design was stated. Deform-3D software was used to simulate the cold forging process. After analyzing the simulate results and physical experiments, the advantages and disadvantages of standard and nonstandard gear profile were summed up. Using standard gear profile, fold defects exist if the cold finishing amount is large, while the precision of tooth surface is low if cold finishing amount is small. Using nonstandard gear profile, which increases the face finishing amount and decreases the root finishing amount, the defects disappear. Though comparing the results, it is found that the nonstandard hot forging gear tooth profile is better than standard.