Abstract: Based on researching of the parallel of FFT algorithm and combined with architecture characteristic of RCSIMD, one 8192 point FFT mapping algorithm is proposed in this paper.The mapping algorithm partitions 64 data blocks and each data block contains 128 sequential datum (being stored in local memory of RPU).Reconfigurable processing array (RPA) performs the shuffling and reordering operation for the data blocks and bit-reversed operations among of data block are not executed by data remove (being performed by the reconfiguration data).Performances of the communication networking and reconfigurable processing unit (RPU) can be exerted by this data storing schedule and bit-reversed method.