There is no specific method for treatment of noise-induced hearing loss, therefore we can say prevention is the best way, and there are also many methods for prevention of noise-induced hearing loss. Peysers' say that there is a different individual susceptability to noise exposure and to check of noise-induced temporary threshold shift(NITTS) before have a job in noisy industry is the best method for prevention of noise-induced hearing loss. Authors present the data of NITTS and its recovery on noise-induced hearing loss persons. After 4,000Hz continuous white noise stimulation of 70dB(ref. ISO 1964) above threshold to 64 persons(78 ears) with noise-induced hearing loss, checked the NITTS, its recovery process and recovery time using conventional and Bekesy audiometers. The results were summerized as follows. 1) Average NITTS by conventional audiometer was 14.29±0.79dB and that of Bekesy audiometer was somewhat more as 15±0.60dB, and there was statistical significance between them(p<0.05). 2) All subjects recovered more quickly in first one minute, after then recovered slowly. 3) There was a tendency to take the longer recovery time in the more NITTS. 4) The worse hearing acuity cases had the fewer NITTS, but had the longer recovery time with statistical significance(p<0.05). 5) About 10.2% of test ears had over 25dB of NITTS in conventional audiometer and 3.3% in Bekesy audiometer. There was statistical significance(p<0.01) between 8.71±2.27 minutes of recovery time below 20dB NITTS group and 37.38±13.47 minutes of above 25dB group. 6) The incidence of the ear over 10 minutes of the recovery time was 15.4% in conventional audiometer and 33.3% in Bekesy audiometer. Their NITTS and recovery time were 22.92±1.61dB, 55.25±0.34 minutes and 17.5±0.56dB, 32.6±3.97 minutes, but there was no significance in each other except between recovery time(p<0.01). 7) With above results author suggests that temporary threshold shift and its recovery time after white noise stimulation is useful for evaluation of individual susceptability to noise, and concludes that a man who has 25dB or more of NITTS and 10 minutes or longer of recovery time in this study has susceptability to high intensity noise.