The invention relates to a structure for controlling vibration of a converter valve tower. The structure comprises a suspension insulator, suspension springs and tension insulators. One end of the suspension insulator is connected with the top end of the converter valve tower. The other end of the suspension insulator is connected with a valve hall through the suspension springs. The bottom of the converter valve tower is in inclined connection with the ground through the tension insulators. Compared with the prior art, the structure has the advantages that the limitation method of connecting the bottom of the converter valve tower with the ground through the tension insulators is provided, and the vertical springs are arranged on the top of a converter valve. The tension insulators are used for electrical insulation of the converter valve and act in limitation. The vertical springs at the top are used for preventing slim insulators at the top layer from losing stability under a vertical earthquake. The structure is featured by no influence on the electrical function of a device and good limitation effect, is applicable to high-pressure and ultra-high-pressure converter valves in a high-earthquake-intensity area and has the effect of reducing the horizontal displacement and vertical acceleration response of the converter valve and protecting the expensive electrical device.