Resin for correction fluid, chemical synthesis method thereof and correction fluid

The invention provides a chemical synthesis method of resin for correction fluid, the resin for the correction fluid and the correction fluid. According to the method, two or more of methyl methacrylate, butyl acrylate, 2-ethylhexyl acrylate and hydroxyethyl acrylate serve as soft monomers, styrene serves as a hard monomer, azodiisobutyronitrile serves as a catalyst, cyclohexane serves as a solvent, heating reflux is carried out on a first mixed monomer composed of the soft monomers, the hard monomer, the catalyst and the solvent, a first mixed solution is generated through reaction, a second mixed monomer composed of the soft monomers and the hard monomer is slowly added into the first mixed solution dropwise, a second mixed solution is obtained through reaction, azodiisobutyronitrile is added into the second mixed solution, and the resin for the correction fluid is obtained through reaction. By controlling the dosage proportion of various reaction solvents and specific reaction conditions, the resin, with g