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Background & Aim: Practical emotional factors involve in disorders such as obsessive-compulsive disorders. The aim of the present study was to compare the expression of emotion facial recognition in patients with obsessive-compulsive disorder (OCD) and average people. Methods: The present study was a cross-sectional and ex-post facto investigation (causal-comparative method). Participants were twenty clients suffering from obsessive-compulsive disorder (clients referred to Tabriz Bozorgmehr Special Center) and 20 normal people which were selected through the available sample method. Data were collected through a structured clinical interview and the Recognition Emotion Facial States Test. Multivariate analysis of variance, Chi-square and independent t-test were conducted to analyze the data. Results: The findings showed that there was significant difference between the two groups in terms of recognition of facial expression of emotion (P<0.05). Accordingly, normal controls, in terms of these variables, were better than people with OCD. Conclusion: This Study indicated that defect of recognition of emotion facial expression is constructible which can have a significant role in intensifying obsessive-compulsive disorder precipitate symptoms.