The invention provides a corrosion inhibitor of water-soluble organic sulfonate derivatives containing benzotriazole-chalcone diad. A general chemical formula of the corrosion inhibitor of the water-soluble organic sulfonate derivatives containing benzotriazole-chalcone diad is as shown in the specification. A synthesis method of the corrosion inhibitor of the water-soluble organic sulfonate derivatives containing benzotriazole-chalcone diad comprises the following steps of adding 4,4'-{benzene-1,2-nimoto-bi[(1E)-3-carbonyl propyl-1-alkene-3,1-nimoto]}bi[2-(2H-benzotriazole-2-radical) benzenesulfonic acid] or 4,4'-{benzene-1,4-nimoto-bi[(1E)-3-carbonyl propyl-1-alkene-3,1-nimoto]}bi[2-(2H-benzotriazole-2-radical) benzenesulfonic acid] and sodium hydroxide at a ratio of 1 to 2 into a 50mL thee-opening flask; adding dry ethyl alcohol which has the volume being 50-60 times of that of sodium hydroxide and serves as a solvent, performing magnetic stirring at room temperature for 0.5 hour; performing suction filtration, performing washing with ethyl alcohol, and performing vacuum drying, thereby obtaining a target product. The water-soluble organic sulfonate derivatives containing benzotriazole-chalcone diad has a favorable corrosion inhibition effect on metallic copper in a sodium chloride solution with the mass ratio of 3%; in addition, the water-soluble organic sulfonate derivatives containing benzotriazole-chalcone diad has favorable water solubility, so that the application range of the corrosion inhibitors can be expanded.