Introduction: Proper control of type 2 diabetics as a chronic disease is an important factor for preventing complication. Attitude of patients to preventive behavior can affect their performance. The aim of this study was to determine the attitude toward preventive behavior of complications in type 2 diabetics.Materials and Methods: In this descriptive-correlation study, 200 patients with type 2 diabetes attended and were examined in the Yazd Diabetes Research Center. The Questionnaire used for data collection consisted of demographic variables and «Attitude toward Preventive Behaviors of Complications in type 2 diabetics». Content and face validity were confirmed and the reliability of the instrument was determined by internal consistency and test-retest methods. Data analysis was analyzed by SPSS/19.Findings: Majority of patients had positive attitude towards preventive behavior of diabetes type 2 complications. In addition, the length of diagnosis was significantly correlated with attitude toward preventive behavior (p<0.05). However, age was not significantly correlated with attitude toward preventive behavior of type 2 diabetes complications.Conclusion: Positive coloration between attitude toward preventive behavior of diabetes type 2 complications and the length of being diagnosed of type 2 diabetics can direct policy makers to conduct training programs for new patients with type 2. Providing educational programs to prevent type 2 diabetes complications behavior is suggested.