The invention is suitable for the technical field of reactive voltage optimization of a power distribution network, and provides a reactive voltage optimization method containing a distributed photovoltaic power distribution network, terminal equipment and a storage medium, and the method comprises the steps: obtaining the initial active power of a photovoltaic inverter; optimizing the distributedphotovoltaic power distribution network for the first time according to the initial active power, a preset first objective function and a first constraint condition, and obtaining the maximum value of the active power to be reduced by the photovoltaic inverter after the optimization for the first time; and carrying out second optimization of the distributed photovoltaic power distribution networkaccording to the maximum value of the active power needing to be reduced and a preset second objective function and a second constraint condition. According to the reactive voltage optimization method containing the distributed photovoltaic power distribution network, the terminal equipment and the storage medium provided by the embodiment of the invention, the node voltage of each node can meetthe node voltage constraint condition in each time period by optimizing the distributed photovoltaic power distribution network twice, so that the voltage out-of-limit condition is avoided.