Most of the tools for measuring streaming media applications are designed for

pressure test,which can not reflect the actual performance at end users. During the

development of the streaming media,the streaming media performance monitoring is very

important. From the perspective of end users,we propose several metrics reflecting the

performance of the streaming media applications,and accomplish a measurement method,which is

based on active business stimulations. A simulative experiment is designed for analyzing the

influence on the streaming media performance caused by bandwidth,frame rate,packet loss and

delay. According to the experimental data,our work can accomplish the dynamic control of

quality and provide a basis for optimizing the streaming media business system.