变声是青春期第二性征的主要表现之一,此时期声带长度、厚度急剧改变,喉结突出及嗓音突变,易招致嗓音疾病。对演员来说,是关系到艺术生命的重要问题。为了探索此时期喉部的生理变化,有助于职业性喉病的防治,作者对重庆地区200名青少年川剧学员进行了变声期喉部生理变化的观察研究。． Vocal change is one of the main manifestations of adolescent secondary sexual characteristics, during which the vocal cord length and thickness change dramatically, sudden change of Adam’s apple and voice, easily lead to voice disease. For actors, it is an important issue that concerns the life of art. In order to explore the physiological changes of the larynx at this period, it is helpful to the prevention and treatment of occupational laryngocarcinoma. The author investigated the physiological changes of the larynx in 200 young Sichuan opera students in Chongqing. .