对１１７例（１２６耳）慢性化脓性中耳炎病人进行纯音听力测试，就其骨、气导阈值与中耳病变程度进行统计分析，所有参与分析病例均除外其他致聋因素。使用ＩＢＭ－ＰＣ／ＡＴ微机及ＳＰＳＳ／ＰＣ统计软件进行分析。中耳病变程度从单纯鼓膜穿孔→听骨中断、破坏→骨质破坏，分为６个级别。结果发现随中耳病变的加重，低、中、高频骨导听阈呈逐渐上升趋势。资料显示纯音测听出现较明显高频气导听力损失及中、低频骨导听力损失，常预示中耳病变较重。 Pure tone audiometry was performed on 117 patients (126 ears) with chronic suppurative otitis media. The bone and air conduction thresholds and the degree of middle ear lesion were statistically analyzed. All other involved deaf factors were excluded. Use IBM-PC / AT microcomputer and SPSS / PC statistical software for analysis. The degree of middle ear lesions from a simple tympanic membrane perforation → ossicular disruption, destruction → bone destruction, divided into six levels. The results showed that with the increase of middle ear lesions, low, medium and high frequency bone conduction threshold showed a gradual upward trend. Data show that pure tone audiometry appears more obvious high-frequency air conduction hearing loss and bone loss in the low-frequency bone conduction, often indicates that the middle ear lesions heavier.