With fast development of distributed PV generation, there has been a fundamental change in distribution load characteristics.In this paper, a distribution fault outage cost evaluation approach considering distributed PV generation is proposed.We analyze the characteristics of distribution load when take distributed photovoltaic generation into account, and propose the practical load models for power generation and consumption of photovoltaic generation using multi?data sources.Both power generation cost and consumption cost are evaluated.The numerical results present the effectiveness of our method.