Abstract: Flexible cable supported photovoltaic are prone to be significant wind induced vibrations， which can lead to various structural safety and usability issues. Currently， the law of wind induced vibrations is not clear， and there are no corresponding vibration suppression measures. This study conducted wind tunnel tests on the full aeroelastic model of flexible cable supported photovoltaic. It synchronously measured the displacement and cable force of single-layer flexible cable supported photovoltaic， analyzed the effects of wind speed， inclination angle， and wind direction angle on displacement and cable force， proposed corresponding vibration suppression measures， and verified their vibration suppression effect through experiments. The results show that the flexible cable supported photovoltaic undergoes vertical and torsional coupled vibration under strong wind. The maximum displacement response occurs at wind suction and the maximum of cable force occurs under wind pressure. Therefore， wind suction is an unfavorable working condition for designing the joints. Meanwhile， wind pressure is an unfavorable working condition for designing columns and bases. The anchor cable has a significant mitigation effect on the vertical and torsional displacement at wind suction. The larger of the tilt angle is， the better mitigation effects. For the cable end force， the anchor cable can effectively reduce the fluctuation of cable force. The larger the tilt angle is， the more effective the cable force reduction.