The upgrade of “Broadband China” to the national strategy is helping to accelerate the construction of “Light Network City” in Ningbo, Zhejiang Province. The reporter learned from the Ningbo Smart City Construction Leading Group Office that the city will be built ahead of the country as a leading “optical network city” at the end of this year, in which the average household access capacity of urban households exceeds 30 trillion, and the average bandwidth access capacity of rural households exceeds. 8 trillion, the core area of the city is generally equipped to meet the 100-megabit access capability of home users. In 2010, Ningbo made the decision to build a smart city. In 2012, Ningbo City launched the “Three-Year Action Plan for the Construction of Optical Network Cities” (2012-2014). The "Plan" shows that through the construction of "optical network city", Ningbo will fully realize the conversion from copper access to fiber access, and the coverage of fiber network, the level of sharing and sharing, the penetration rate of broadband users, and the access capability will be significantly improved. According to the "Plan", at the end of 2014, Ningbo will realize the full coverage of the urban home fiber network and the construction of villages and villages through the optical fiber. By then, the coverage of fiber optic networks for home users in the city will exceed 95%. Business buildings and non-profit organizations have more than 100 megabits of network bandwidth access capability, achieving gigabit-to-floor connectivity to meet the needs of hundreds of megabytes to the desktop; metropolitan area network outlet bandwidth is more than 1500G. Focusing on the four major lines of fiber network facilities, resident network sharing and sharing, network bandwidth enhancement and broadband service expansion, Ningbo “optical network city” focuses on urban household bandwidth improvement, building broadband expansion, rural broadband expansion, and residential network communication facilities. Five major projects, including building and sharing, fiber-optic network applications and industrial development. Statistics from the “Smart Office” in Ningbo show that as of the first half of this year, the city has 2.38 million Internet broadband access users, and the optical network covers 2.7 million home users, with an average access capacity of 30 megabytes. According to the current construction progress, Ningbo will build a “light network city” one year ahead of schedule to realize the transformation of household broadband from “Pu Express” to “High Speed Rail”. In addition, Ningbo also actively promotes the free Internet access project for public places, and Haishu, Jiangdong, Jiangbei, Zhangzhou, Beilun, Zhenhai and other urban areas provide moderate free services to the public in major public places through government-paid methods. The hotspots that have been opened have been concentrated in public places such as medical halls, examination halls, libraries, and parks. According to the construction plan, the next hot spot will be extended to bus stations and public bicycle rental points. All opened hotspots use unified access to unified login pages, while providing convenient access for the public, it also provides a unified information transmission channel for wireless cities. While facilitating the public, this project also promoted the level of basic communication facilities and network utilization rate in Ningbo. Statistics show that the city's metro Internet export bandwidth reaches 1300G, TD-LTE 4G wireless communication base station has reached 859, and accumulated 7,300 WiFi hotspots and 54,500 access points. The 3G wireless broadband network has covered 2.89 million users in urban areas, an increase of 74% year-on-year. The 4G pilot network infrastructure construction and commercial experience accelerated, and more than 730 base stations and room subsystems have been opened, initially achieving full coverage of 4G in the main urban area and two higher education parks.