In the assembly of steam turboset, the vibration control of turbine shaft is the key problem of installation. In this paper, the vibration control strategy of turbine is proposed by outgoing quality control, base grouting control, contact control between bearing and its pillow, gap control between the dynamic and static parts of turbine, rotor alignment control, field quality control of rotating parts, flutter variation control before and after coupling connection, isolation control of turbine island site with architecture around, and etc. As a result, the turboset is successfully started at one time and the bearing vibration is on good level.