Abstract: JAIN SLEE, as the core of an asynchronous, event-driven, converged network application environment, its reliability requires persistence program to save and restore the states related to service building blocks. However, JAIN SLEE lacked for the technology of asynchronous persistence at present. An asynchronous persistence program is proposed in this article, and then the persistence resource adaptor is designed and implemented. After testing, the program can guarantee the reliability of JAIN SLEE, with higher performance compared with the mature, synchronization persistence program of J2EE.