The concept of cutting platform is proposed and realized based on the latest two-step automated tape laying (Two-step ATL)technology,which separates prepreg cutting process from tape laying to improve productivity for large parts with small features. Two-step ATL is more efficient than conventional layup because ply patches are pre-cut in a separate operation. The concept of the prepreg tape cutting experimental platform with two cutters is introduced. Further,based on the automatic tape laying trajectory planning software,a two-cutter cutting algorithm is proposed. Cutting experiments are reported to validate both the concept of cutting platform and cutting algorithm.