The target of BB-TEAM (BroadBand network Traffic Evaluation, Analysis and Management system) concentrates on evaluating the performance of CHT broadband network. Through collecting multi-vendor ATM/DSL AM equipment traffic and performance data, the system monitors the operation of CHT broadband network to assure the QoS predefined. It also provides tools to filter the "unexpected" traffic to help operators to find out the network problems before performance degrades. With a traffic serving workflow, the improvement of traffic can be implemented on WEB-based platforms via a browser easily and efficiently. Its business logic can automate traffic management and integrate network resources to increase network utilization and to enhance market competition. This article introduces the framework of BB-TEAM which includes the system architecture, database management, network traffic analysis and performance evaluation. Futhermore, it outlines how BB-TEAM can improve broadband network performance while applying it on CHT ATM-based broadband network, ADSL/Hinet/ISP Network and specific service analysis. Finally, it describes the up-to-date status and deployment of BB-TEAM system.