The nod mode of the hoop antenna structure is realized by suspension decoupling， and its vibration control is a technical bottleneck to be solved. In this paper， T-S fuzzy vibration control of nod mode of a hoop antenna structure is studied. A flexible scaled model is used as the suspension object， and the natural frequency and mode are obtained through finite element analysis.Modal analysis shows that the nodding mode is less affected when the model is suspended laterally. The state space equation is es?tablished based on the vibration parameters of the laterally placed model. According to the fuzzy control principle， the T-S fuzzy control rules are determined. When the linear output function is used to replace the complex clarity process， the T-S fuzzy control program is established. Consequently， the active vibration control is studied. The numerical results show that the response of nod mode direction decreases greatly after T-S fuzzy control， and the suppression target is realized after mode decoupling.