The invention relates to the technical field of energy saving and environmental protection, in particular to a system for recovering waste heat produced in the phenylboronic acid production process. The system comprises a phenylboronic acid production refrigerator, a thermal cycling system, a high-temperature and high-pressure superheated steam generator and a low-parameter steam driven power generator, wherein the phenylboronic acid production refrigerator is located inside the thermal cycling system; the high-temperature and high-pressure superheated steam generator is located above the thermal cycling system; and the low-parameter steam driven power generator is arranged on one side of the high-temperature and high-pressure superheated steam generator. With the adoption of the system, a large quantity of heat produced by the refrigerator in the phenylboronic acid production process is converted into electric energy, so that resource waste is reduced, the heat is successfully recovered, the electric energy produced through conversion can be put into production again, and the production cost is reduced.