In a recent decade there has been a great deal of interest in work engagement. This interest stems from evidences that show the strong relationship between engagement and individual and organizational outcomes. It has been reported that the level of employee engagement in organization is low. The decline in level of employee engagement costs organization billions of dollar in term of lost productivity. Different factors (such as job demands, job resources, personal resources) has been identified as antecedents and also different factor (such as organizational commitment, job satisfaction, Organizational citizenship behavior etc.) as consequences of work engagement. In this line, aim of this research is to explain antecedents of work engagement and its effect on organizational commitment. Results show that job resources (autonomy, social support, feedback, supervisory coaching, opportunities for development) and personal resources (self efficacy, proactive personality, conscientious trait) are work engagement antecedents. And work engagement has positive effect on organizational commitment.