2,3-benzosuberone was synthesized using benzene and glutaric anhydride as raw materials through Friedel-Crafts reaction, Wolff–Huang-Minlon reduction and cyclodehydration. Under the optimum reaction conditions of n(glutaric anhydride) :n(benzene):n(AlCl3)=1:2:2, at room temperature for 3h, and reduction at 120℃ for 2h, then cyclodehydration at 160℃ for 2h, the overall yield was 60.3%. Structures of the intermediates and the final product were characterized by IR, NMR and MS.