The splitting of segmented pie filaments in spunbond is a direct impact on the performance of final products. After splitting process, one primary filament is fractured into several micro-filaments which own excellent properties. This paper was to investigate effects of splitting on segmented pie filaments when they were processed with different splitting technologies. Scanning Electron Microscope (SEM) micrographs were used for characterizing the splitting effect in order to discuss optimal splitting techniques to manufacture segmented pie spunbonded nonwovens. The results indicated that spunlacing and alkali deweighting can get a better splitting effect than the other process.