To address the problems of low efficiency and lack of ability of single indicating cluster target of a laser-guided weapon indicator, a large-angle laser deflection control system used for multi-target indication is designed based on the beam deflection control and beam-angle amplification techniques, and a liquid crystal-phased array and multiplex volume holographic grating are used as controls. The selection rules of the parameters affecting the deflection characteristics of the liquid crystal optical phased array and the design method of the large angle beam deflection system are analyzed in this study. Additionally, the indication process of the laser multi-target indication system is simulated and the error source and correction method are simulated and theoretically analyzed. Results indicate that the proposed system can rapidly achieve quasi-continuum and programmable deflection control of the laser beam in two-dimensional space with a maximum light beam deflection angle of 15.63°. Furthermore, the proposed error correction method can effectively improve the indicated precision of the laser and reduce the error angle by about 50%. Overall, the proposed laser multi-target indication system can be used to realize quasi-continuum and the precise quasi-instantaneous indication of multiple targets in two-dimensional space, thus offering theoretical support for the design of a laser multi-target indicator.