Traditional three-step current protection in distribution network containing photovoltaic power (PV) power can''t operate accurately due to different PV supply capacity and incorporated position. In order to solve this problem, this paper puts forward to proceed with adaptive current protection setting according to the composite sequence network voltage protection point. First of all, it extracts the fault voltage and positive sequence fault current phase difference to determine the fault occurred in the PV power supply upstream or downstream. Then, it selects sequence component to judge fault type and fault zone. Finally, it uses the composite sequence network voltage to obtain the current setting value in protection installation, to carry out adaptive protection setting movement. The protection scheme is verified by the simulation. It can realize adaptive on-line protection setting and effectively improve the scope of local protection based on different incorporated position, capacity, and failure location of PV power. This work is supported by National Natural Science Foundation of China (No. 61573303).