The invention provides a fuzzy self-adaptive voltage control method of a distributed photovoltaic power station. The method includes the steps of conducting local voltage control data acquisition of a distributed photovoltaic power station; conducting self-adaptive adjustment in an expected voltage interval on the basis of fuzzy logic; monitoring the running condition of an active power distribution network comprising the distributed photovoltaic power station; and conducting fuzzy self-adaptive voltage control based on control mode switching. On the basis of local measurement information, a voltage expected value interval self-adaptive adjusting method based on fuzzy logic and a fuzzy self-adaptive voltage control method based on mode switching are utilized to achieve local self-adaptive voltage control of the distributed photovoltaic power station in various conditions, so the distributed photovoltaic power station has the capability of participating in power grid voltage adjustment, and the voltage control capability of the distributed photovoltaic power station is brought into full play. In this way, grid-connected point voltages are stabilized, the distributed photovoltaic power station grid-connected impact is minimized, the high permeability consumption of distributed photovoltaic power generation is facilitated, and the energy efficiency and the environment benefits of the distributed photovoltaic power station are further brought into play.