In this article, we review research on how normal personality traits and personality disorder traits may relate to anxiety disorders ; as predisposing factors, 2) as complications, 3) as pathoplastic factors, and 4) as manifestations of common underlying etiologies. Based on current literatures, we draw a conclusion as follows : 1) Normal personality traits such as high neuroticism and low extraversion and personality disorder traits, especially cluster C traits, are at least risk factors for certain anxiety disorders ; 2) Anxiety disorders in early life might influence a later development of personality disorder ; 3) Personality disorder traits may have negative influence on the outcome of anxiety disorders ; 4) Personality and anxiety disorders may be manifestations of common genetic and environmental etiologies.