The characteritsic performances of two different bismaleimide based fiber reinforced composites were tested, and a finite element model for predicting the process induced distortion of hybrid fiber composite was built. The FEA results show that this finite element model can predict the distortion trend and the maximum distortion amount of hybrid fiber reinforced composites accurately. Compared the model output and the experiment result, the error is about 10%-15% considering the maximum distortion amount.