At present, the hybrid active power filter (TCLCHAPF) with thyristor controlled LC reactor generally uses the equivalent impedance method to control the TCLC part and the hysteresis comparison method to control the active power filter part. This kind of controller ignores the connection between active and passive parts, so it can not guarantee the stable harmonic suppression capability in the whole range. In this regard, taking singlephase TCLCHAPF as the research object, the TCLCHAPF dualmode predictive control model is analyzed and obtained. On the basis of the predictive control model, the active part and passive part are jointly controlled. Then the historical waveform of the instruction current is input to the predictive controller, and the possible direction of performance optimization is obtained through multi period prediction and rolling optimization, thus improving the longterm operation performance with stable load. In order to make the optimization result of discrete output act on TCLCHAPF device, a terminal pulse PI controller is proposed. The simulation experiment under variable working conditions shows that the model predictive control scheme is feasible. Compared with the traditional scheme, the controllable range becomes wider and the control performance becomes better when it is stable.