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The network control center, which access to the line operation control center, plays an important role in the metro management and control by the way of real time monitoring the overall operation status of the metro network. And also submit the relevant data to the traffic management system so as to coordinate with the work of the government traffic management department. The data center, which stores the overall network production data and business data, is the core of the network control center. At present, the data center of the network control center constructed based on the traditional data warehouse architecture. With the number of the line and data increasing, the traditional warehouse exposed high cost, difficult expansion and maintenance and other shortcomings. This paper proposes the data center construction scheme based on the Hadoop big data platform, which greatly reduces the use and maintenance costs. The Hadoop ecosystem contains various modules, can solve all kinds of problems encountered in the construction and use of the data center, as the result, improves the performance of data center.