The application discloses a suspension capacitance type five-level inverter and a low-voltage ride-through control method and apparatus thereof. The method comprises: a grid-connected point voltage of a suspension capacitance type five-level inverter is obtained; whether the grid-connected point voltage is lower than a first preset value is determined; if so, a suspension capacitance voltage of the suspension capacitance type five-level inverter is increased by adjusting an active current outputted by the suspension capacitance type five-level inverter; and when the suspension capacitance voltage is increased to a second preset value, the active current t outputted by the suspension capacitance type five-level inverter is restored to a normal value. Therefore, excessive stress occurrence of a switching tube is avoided on the condition of low-voltage ride-through of the suspension capacitance type five-level inverter.