The self-lift tension leg cage can dive into the water under the action of currents. It has the advantages of avoiding the impact of wind and waves and reducing the risk of damage to the cage system under severe sea conditions. It has a good market prospect. According to the Tauti Criterion, the relationship between the cable tension, the dive depth of cage, the volume loss rate, and the flow velocity of the tension leg cage with girth of 60 meters and height of 16 meters was studied by using flume model test method. The results show that the cable tension of the tension leg cage increases with the increase of the flow velocity, and the main force is concentrated on the cable facing the current. The tension leg cage can automatically dive under the action of the current. The dive depth can reach 11.91~17.79 m when the flow velocity is 0.8m/s, which can achieve the purpose of anti-waves. In addition, the buoyancy of the floating frame can be adjusted according to the need to make the settlement depth of the cage reach a reasonable water layer interval. At low flow velocity, the volume loss rate of the tension leg cage is small, and the biggest volume loss rate is 32.5% when the flow velocity is 0.8 m/s, which is smaller than that of the gravity circular cage with a similar configuration. The results can provide a reference for the design and application of the tension leg cage.