According to the disadvantages of traditional three-level space vector pulse-width modulation with the complexity of the selection of switching vector order and the large computational complexity of the algorithm, a simplified space vector modulation strategy applied to the three-level indirect matrix converter is proposed. On the device, this method adopts a modulation strategy with no zero vector in the rectification stage to ensure that the input voltage power factor reaches a maximum; the inverter stage uses space vector modulation of the simplified sector reconstruction to rotate the reference voltage into the first sector. Then reference voltage correction and level-down processing are performed. Compared with the traditional modulation strategy, this modulation strategy not only reduces the computational complexity of the algorithm but also eliminates the need to store a large amount of data in advance, and also reduces the harmonic distortion ratio. The simplified space vector modulation strategy is verified on simulation and an experimental prototype platform is built. The correctness and feasibility of the modulation strategy are verified by experimental methods. This work is supported by National Key Research and Development Program of China (No. 2016YFC0600906) and Natural Science Foundation of Henan Province (No. 182300410280).