Objective:To test the validity and reliability of the Chinese Social Anxiety Questionnaire for A-dults(CSAQ-A).Methods:Totally 555 participants[aged 18 to 60 years,average age(29±8)years old]were recruited to complete the CSAQ-A.The Liebowitz Social Anxiety Scale(LSAS),Brief Fear of Negative Evaluation Scale(BFNE),Penn State Worry Questionnaire(PSWQ),State-Trait Anxiety Inventory-Trait(STAI-T),and Beck Depression Scale-Second Edition(BDI-Ⅱ)were conducted to test the criterion validity.After 4 weeks,143 subjects were retested.Results:Confirmatory factor analysis demonstrated that the five-dimensional structure of the CSAQ-A exhibited excellent fit indices(x2/df=3.06,CFI=0.92,TLI=0.91,RMSEA=0.06,SRMR=0.05).The CSAQ-A scores were positively correlated with the scores of LSAS,BFNE,PSWQ,STAI-T and BDI-Ⅱ(ICC=0.40-0.67,Ps＜0.001).The Cronbach α coefficient of the CSAQ-A scale was 0.96,and the test-retest reliability was 0.80.Conclusion:The Chinese Social Anxiety Questionnaire for Adults has good validity and reliability and could effectively evaluate social anxiety in the Chinese adult population.