Abstract:At present,China's society and economy are becoming a new formal,the tasks of stabilizing growth,adjusting struc- ture,benefiting people's livelihood and preventing risks are heavy.As the important mass organization,trade union plays the role of representative and protector of labor rights,and will enhance the building up of harmonious labor relations,meet with new chal- lenges.Trade unions should pay more attention to harmonious labor relations construction,maintaining social stability,strengthen legal system construction and working mode innovation.Under the background of supply-side reform,trade unions at different lev- els should make positive contributions to economic transition and industrial upgrading.