This study evaluated the psychometric properties of the Chinese version of the Social Anxiety Scale for Adolescents (SAS-A) in a sample of 296 adolescents (49% boys) in Grades 7, 8, 9, 10, and 12 with a mean age of 15.52 years. Confirmatory factor analysis replicated the three-factor structure of the SAS-A in the Chinese sample: Fear of Negative Evaluation (FNE), Social Avoidance and Distress in New Situations (SAD-New), and Social Avoidance and Distress-General (SAD-General). Internal consistency and test-retest reliability were appropriate. The results also revealed a clear and predictable pattern of relationships between the SAS-A and the Questionnaire about Interpersonal Difficulties for Adolescents and the International Personality Item Pool. Chinese boys reported greater SAD-General than Chinese girls, and this difference increased with grade. The SAS-A scores were compared to previously collected data from the USA and Spain, revealing that Chinese adolescents scored significantly higher in social anxiety than American and Spanish adolescents.