Objective:To develop a Chinese version of the Observer Alexithymia Scale (OAS) and examine its reliability and validity. Methods: A sample of 468 under-graduate students was administered OAS.The internal reliability and test-retest reliability were examined, and using confirmatory factor analysis,a five-factor model was tested. Results: The Cronbach's a coefficient of the OAS was 0.84; The range of mean interitem correlation coefficients was 0.20～0.45;The test-retest reliability coefficient was 0.90;The correlation coefficients of the five factors with the total scale score were 0.52～0.75,and the correlation coefficients among the five factors were 0.01～0.55;The GFI(0.952)、CFI(0.943)、IFI(0.944)、REMEA(0.069)all met the criteria standards for adequacy of fit.Conclusion: the Chinese version of the OAS is a reliable and valid measure for assessing alexithymia in Chinese-speaking sample.

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