ObjectiveTo explore the effect of hearing aid intervention on hearing impaired patients living in high altitude areas for a long time.Methods49 hearing aid wearers (63 ears) were selected for analysis, including hearing condition, hearing threshold, speech behind the hearing aid and subjective perception correlation analysis of the International Questionnaire on Hearing Aid Effects, and the compensation effect of hearing aids was comprehensively evaluated.ResultsAmong 63 ears, 34 had moderate hearing loss, 25 had severe hearing loss, and 4 had extremely severe hearing loss. Among them, 35 cases were single ear, and the average score of the questionnaire was 20.34; 14 cases were binaural, the average score of questionnaire was 27.07; Binaural scores were higher than monaural scores. Hearing aid threshold shows that most ears do not get the best hearing compensation, but the compensation is statistically significant (p<0.05), and high-frequency compensation is more obvious. The speech audiometry after hearing aid showed that the maximum speech resolution after hearing aid was higher than that before hearing aid (p<0.05). The speech resolution of hearing aid was positively correlated with the subjective evaluation of the questionnaire (r=0.528, p<0.01).ConclusionThe objective hearing parameters of hearing aids used by hearing impaired people in plateau areas are relatively consistent with the subjective evaluation. The hearing aid effect is more significant and the binaural fitting is more advantageous than the monaural fitting. The overall hearing aid effect is positive.