Introduction: Suicide can be defined as a conscious act of self-harm that leads to death.
Aim: The aim of this study was to comparison attachment styles and alexithymia in suicidal attempts and control group.  
Method: In this casual comparative study, 100 individuals (50 suicide attempts and 50 normal individuals) were selected by convenience sampling. All participant completed the attachment styles questionnaire and Toronto emotional alexithymia scale. Data were analyzed using MANOVA by SPSS-21.
Results: The results showed that the difference between two groups was significant in difficulty in regulating emotions. Also, the difference between the two groups in avoidant and secure attachment style is significant (p<0.05).
Conclusion: According to result, it can be argued that interpersonal and emotional factors play a meaningful role in suicide. It seems that interpersonal factor and emotional characteristic should be considered in planning for prevention and treatment of suicide.