Service-oriented trade union is a new trade union model which is compatible with the socialist market economy. The construction of service-oriented trade union is the strategic position of the Party Central Committee on the development of trade unions and the inevitable requirement of the nature of trade unions. Based on the reform of China's trade unions and the reform of the western governments, The new public management has certain reference significance to the construction of service-oriented trade union in China. At present, China's service-oriented trade union construction is also facing many problems, the deep roots of these problems hidden in the trade union system mechanism level. Based on the new public management perspective and Ningbo Haishu District trade union work innovation practice, service-oriented trade union construction should adhere to the subject position of workers, strengthen trade unions service awareness; adhere to social operation, improve the efficiency of trade unions; adhere to reform and innovation, improve trade union service system ; adhere to the direction of specialization, improve the ability and level of trade union cadres