The invention discloses a grid-connected access structure of a distributed photovoltaic power station and a 10-kV busbar of a power distribution station. The photovoltaic power station is connected with the 10-kV busbar of the power distribution station through a cable, and comprises a power-station-side protective device and a system-side protective device, wherein the power-station-side protective device is arranged on the line of the output cable of the photovoltaic power station; the system-side protective device is arranged on the line of the cable which is connected to the 10-kV busbar of the power distribution station. The grid-connected access structure of the distributed photovoltaic power station and the 10-kV power grid overhead line is capable of ensuring the power supply reliability after grid connection and narrowing the power failure range, and also capable of effectively realizing fault clearing after faults occur..