The inventory of carbon emissions in the life cycle of photovoltaic industry was analyzed. The carbon emissions from different scenarios for disposal stage were compared. The data for the resource, energy fluxes and environmental emissions were obtained from site investigations, published literature and new technologies development and application. It shows that the carbonemissions of manufacture stage were high, among which the polycrystalline silicon production process's carbon emissions were the most. The carbon emissions of use stage were the lowest, accounting for 3.7% of manufacture stage. Thermal power consumption was the primary factor of carbon emissions, which its carbon emission was accounting for 64.98% of manufacture and use stages. The carbon emissions of disposal stage were highest in landfill treatment followed by dismantling and thermal decomposition. Landfill could increase 0.08% of carbon emissions in manufacture and use stage. In contrast, dismantling and thermal decomposition could reduce 6.03% and 33.59% of carbon emissions more significantly. The results highlighted that the carbon emission of 1kW·h of electricity generation from photovoltaic module with thermal decomposition in disposal stage were significantly lower than these from other research and current electrical power system in China. Development of photovoltaic industry would achieve a win-win situation between environment and energy.