With the rapid development of digital applications, it is crucial to guarantee the reliability, high-power, operatability and manageability of IP broadband network. According to the requirements of carrier-grade IP broadband network, based on the detailed study of IP protocol, the challenges of carrier-grade IP broadband network on the aspects of service quality, which guarantee the network operation, were analyzed. To satisfy the requirements of network design, operation management and increment businesses, a metrics system is proposed. Then, combined with existing measurement methods, a solution to building carrier-grade IP broadband networks based on network measurement and monitor was proposed.