High-performance epoxy resin and preparation method thereof

The invention relates to high-performance epoxy resin and a preparation method thereof. The preparation method comprises the following steps: dissolving cycloethyl-3-alkenyl-1-ether and methyl phenyl dichlorosilane in a solvent, stirring and dissolving, adding an inorganic peroxide catalyst, heating, carrying out a reflux reaction, cooling, washing with water, and drying to obtain a first solid intermediate product; dissolving 3-furoic acid and maleic anhydride in a solvent, stirring and dissolving, adding a basic catalyst, heating for the first time, carrying out a first reflux reaction, cooling for the first time, washing with water, drying, adding an acidic catalyst, heating for the second time, carrying out a second reflux reaction, cooling for the second time, washing with water, and drying to obtain a second solid intermediate product; dissolving the first solid intermediate product and the second solid intermediate product in a solvent, stirring and dissolving, heating, carrying out reflux reaction, co