A Reconfigurable Clustered Architecture Model named RCCPA and Task mapping method were proposed. Based on task ready list, this technique avoids the deadlock problem of the division of tasks. Through the development of block cipher's parallelization between packets and pipeline characteristic of the group, the unit utilization and cryptographic processing performance of the RCCPA architecture were improved. AES / DES / IDEA .etc cryptographic algorithm used automated method of mapping adaptation in RCCPA architecture, and the results show that the proposed model and method effectively improve the processing performance of the block cipher algorithm.