人耳能听到20～2000Hz间不同频率的声音，通常纯音测听只测125～8000Hz间的倍音频程范围的听阈。国内对高频听力的阈值虽有报道[1－3]，但由于所用听力计及耳机各异，测试方法也不统一，所以测试结果不尽相同。我们采用丹麦产MadsenORBITR922听力计，测试了宁波市100名正常青年 Human ear can hear the sound of different frequencies between 20 ~ 2000Hz, pure tone audiometry is usually measured only between 125 ~ 8000Hz double tone frequency range of hearing threshold. Although the threshold of high-frequency hearing in China has been reported [1-3], the test results are not uniform due to the different audiometry and earphones used and the test methods are not uniform. We used the Danish-made MadsenORBITR922 audiometer to test 100 normal young people in Ningbo