Abstract: Objective To examine the reliability and validity of Obsessive Belief Questionnaire-44,Chinese Version(OBQ-44).Methods The OBQ-44,Yele-Brown Obsessive Compulsive Scale(Y-BOCS)and Obsessive-Compulsive Iventory-Revised(OCI-R)were administered to 76 obsessive-compulsive disorders(OCD)patients and 841 adolescents.The Cronbach's alpha coefficients,mean inter-item correlations,test-retest reliability,factorial validity and criterion validity were calculated to assess the reliability and validity of OBQ-44.Results The Cronbach's α coefficient of the OBQ-44 in two groups were over 0.95,and the Cronbach's α coefficients of the three factors were over 0.90.Test-retest reliability of OBQ-44 and its three factors were over 0.50.Indices of confirmatory factor analysis were cofirmatory fit index(CFI)(0.91),Tucker-Lewin index(TLI)(0.90),χ²/df(3.75) and root mean square error of approximation(RSMEA)(0.06),which supported the original OBQ-44 structural hypothesis of three factors model.There ware significant positive correlations among OBQ-44 and its three factors with Y-BOCS and OCI-R.ConclusionThe Obsessive Belief Questionnaire-44-Chinese Version is of good reliability and validity,which could serves as an excellent measuring tool for assessing obsessive beliefs in Chinese population.