针对P2P模式下视频流媒体直播系统的数据传输策略用改进的模拟退火算法进行了优化。以全局规划的思想建立了P2P视频流媒体的数据传输策略数学模型VMDTSA_P2P,模型充分考虑了可用出口带宽和可用性时间对播放连续性的影响。-Strategies for data transfer mode P2P video streaming system with improved simulated annealing algorithm optimization. To the idea of global planning to establish a data transmission policy mathematical model VMDTSA_P2P P2P video streaming, the model fully consider the impact of the available bandwidth and the availability of export of playing time continuity.