The invention relates to a system for treatment of spraying organic waste gas by a circulating liquid curtain, in particular to a device for treatment of sticky paint and coating particles and organic waste gas during construction of coating industry. The system comprises a circulating liquid curtain type spraying table, an organic waste gas low-temperature plasma and photocatalyst waste gas treatment device, an organic waste gas active carbon treatment device, and an organic waste gas treatment device with a gas phase oxidation process. The system is characterized in that: the sticky paint particles, which are not adhered to a coated object during painting construction, are treated by using the circulating liquid curtain, so that the sticky paint particles are no longer sticky and become powder, and also baffle paint coating dust; organic waste gas enters the organic waste gas low-temperature plasma and photocatalyst waste gas treatment device, the organic waste gas active carbon adsorption device and the organic waste gas treatment device with the gas phase oxidation process, through splitting action of low-temperature plasmas, organic waste gas molecular groups are oxidized by ozone to generate carbon dioxide and water, and then enters a photolytic purification stage to form dual-stage purification of carbon dioxide and water, in this way, spraying organic waste gas is guaranteed to reach the standard of purification and also reach the national emission standard.