Traditional multi-processor interconnection structure can not be suitable for highly integrated SoC multi-core processor because of high resource overhead, and NoC can solve the problem of multi-core processor interconnection on SoC with high-bandwidth, low power, scalability and parallel communication. Based on multi-core NoC simulation platform, task-oriented NoC scheduling policy is proposed, and median filter algorithm is optimized as typical application for parallel scheduling. SoClib simulation platform with SystemC language is used for validation and analysis variation of multi-core NoC speedup when cores number is changed.