Three-super platform system capable of being repeatedly locked

The invention discloses a three-super platform system capable of being repeatedly locked. The three-super platform system comprises a controller, a directional vibration isolation mechanism and a repeated locking driver, the controller collects internal displacement information of the pointing vibration isolation mechanism, carries out driving instruction resolving in combination with a control target, converts a driving instruction resolving result into driving current, outputs the driving current to the pointing vibration isolation mechanism, receives a ground injection instruction and forwards the ground injection instruction to the repeated locking driver; the repeated locking driver converts a ground injection instruction of the controller into driving current and outputs the driving current to the pointing vibration isolation mechanism; on one hand, the directional vibration isolation mechanism receives the driving current of the controller to perform linear displacement motion, high-precision direction