Objective: This study was conducted to examine work commitment of social workers up to some variables such as gender, age, income level, marital status, working time/duration etc. Method: Study was executed with 153 social workers via relational screening model. Personal information form and Professional Commitment Scale developed by Meyer, Allen and Smith (1993) were used in the study. Findings: Up to the research results; meaningful differences were found within the sub-dimension of professional commitment scale such as emotional commitment and professional commitment permanency with social workers' income (p<0,05). Social workers with lower income than 3000 TL have lower affective professional commitment and continuous professional commitment. In another word, the more social workers' income level arises, affective-professional commitment and continuous professional commitment level increases. According to the variable of organization, there is a meaningful difference found in continuous professional commitment. Therefore, continuous professional commitment of social workers who are working at Ministry of Health were found lower than the participants working for other institutions within the scope of study. Conclusion: According to the results of the study, the professional commitment of the social workers differ according to variable of the income and the institution they work. There was no statistically significant relationship between gender, age, marital status, educational status, service years variables of employment and professional commitment of social workers.