Sulfomethyl phenolic resin SMP-II has excellent chemical stability and thermal stability. Its unique structure makes it show broad prospects in industrial applications. Firstly, SMP-II performs exceptionally well in fields such as electronic materials, coatings, and adhesives, effectively enhancing the heat resistance and corrosion resistance of products. In addition, the synthesis process of SMP-II is relatively simple and the raw materials are readily available, which makes its production cost relatively low and suitable for large-scale industrial production. Research shows that the mechanical properties of SMP-II are superior to those of traditional phenolic resins, especially in terms of compressive strength and toughness, which can meet the requirements of higher-performance materials. Meanwhile, SMP-II also shows potential in the development of environmentally friendly materials. During its synthesis process, the generation of harmful by-products can be reduced by adjusting the reaction conditions, thereby achieving green production. In the future, with the continuous advancement of technology, sulfomethyl phenolic resin SMP-II is expected to play a significant role in more high-end application fields and contribute to the sustainable development of related industries.