Abstract: Applying internet questionnaire and subjective listening test,question on hearing loss for the college student group is investigated.The result from internet questionnaire indicates that the group with bad listening habit has worse hearing loss than those with good listening habit,and the group from grade four has worse hearing loss than that from grade one.The following measured equal-loudness level contours verify the above result.Finally,the paper points out that much attention should be paid to hearing protection for college student group,meanwhile,the paper also advises that good listening habit and periodical hearing medical check will contribute to elimination or decrease of the hazard of hearing loss.