Ｔｕｒｂｏｃｏｄｅｓ是近年信道编码理论研究的热点课题。交织器的设计问题是Ｔｕｒｂｏｃｏｄｅｓ研究中的主要问题之一。本文结合Ｔｕｒｂｏｃｏｄｅｓ在个人通信中的应用问题，对分块交织方法进行了研究，给出了一种新的交织器的设计方案，理论分析和计算机仿真证实了此方案在实现上和相关性上都具有良好的性能。同时，本文从理论上解释了在交织长度很大时，交织器的选择对Ｔｕｒｂｏｃｏｄｅｓ译码性能几乎没有影响的原因。 Turbocodes is a hot topic in the theory of channel coding in recent years. The design of interleaver is one of the main problems in Turbocodes research. Based on the application of Turbocodes in personal communication, this paper studies the block interleaving method and presents a new interleaver design scheme. Theoretical analysis and computer simulation show that this scheme is both practical and relevant Has good performance. At the same time, this paper theoretically explains why interleaver selection has little effect on the performance of Turbocodes decoding when the interleaving length is very large.