Abstract: An intelligent structural control system is proposed by employing ball isolation and by controlling with energy transform. Responses of a super structure is controlled effectively by ball isolation, while the relative drift of the isolation layer is alleviated and the control performances are improved depending on the merits of the control device with an energy transducer. A numerical model of the control system is established. An multi-stage force control is conducted by employing the modified control device. Intelligent control is implemented using genetic algorithm. The effectiveness of the control strategy and control system characters is investigated through a sample building simulation.