The invention discloses a modular multilevel converter control simplification method based on a two-level SVPWM method. A single-module modular multilevel converter is equivalent to an upper bridge arm three-phase half bridge and a lower bridge arm three-phase half bridge, which are connected in series; SVPWM of the modular multilevel converter is simplified into combination of 2D-SVPWM and carrier phase-shifting modulation; by reasonably arranging a 2D-SVPWM generation module in the control system, and after effectively limiting output signals of an energy balance control link and a capacitor voltage balancing control link, modulation work can be finished. The method adopts the two-level SVPWM method instead of a multi-level SVPWM method, thereby preventing a complex voltage vector space diagram; and the algorithm is simple, high in universality, good in control effect, low in switching loss, high in DC voltage utilization rate, suitable for any level and can be widely applied and popularized in the MMC control field.