针对目前分布式协同设计软件的特点，本文提出了一种基于jxta协同设计p2p模型"介绍了该模型的总体结构和节点结构、组通信的算法和相应的通信协议的设计、户和系统的双向认证机制"该系统具有高效、分散、安全和健壮等特点"最后以协同绘图作为实例验证了系统的正确性和实用性。-Distributed Collaborative Design view of the current features of the software, this paper, a p2p-based collaborative design model jxta " describes the overall structure of the model and node structures, group communication algorithm and the corresponding communication protocol design, households and two-way system Authentication mechanism " of the system is an efficient, decentralized, and robust security features such as"　Finally, collaborative mapping system as an example to verify the correctness and practicality.