OBJECTIVE To compare the efficacy of Eustachian tube pressure nebulization and insuffiation system and conventional drugs on acute otitis media of effusion in adults. METHODS Sixty ears of acute otitis media of effusion in our hospital were selected as the research objects. All patients were divided into two groups according to the treatment,which received drug therapy alone and received drug therapy and nebulizer therapy. The course lasted for 7 days. ETS,ETDQ-7,related hearing tests(acoustic immitance and pure tone threshold),and the therapeutic effect were compared among the three groups. RESULTS In drug therapy alone group,6 ears were cured,10 ears were improved,and the total effective rate was 53.3％. In drug therapy and nebulizer therapy group,17 ears were cured,9 ears were improved,and the total effective rate was 86.7％. There were no complications or adverse reactions in all patients. CONCLUSION The effective rate of the patients treated with Eustachian tube pressure nebulization and insuffiation system combined drug therapy was significantly higher than that of drug therapy alone. On the basis of conventional drug therapy combined with eustachian tube pressure nebulization and insuffiation system might can be a new effective choice for acute otitis media of effusion in adults.