In view of the point where technology has reached today, the need for knowledge and skill has increased, and consequently, the concepts of “expertise” and “knowledge” have emerged as new expressions. If it is insufficient to meet their needs in jobs that require expertise, it is seen that they tend to seek help from experts in line with the needs of individuals and institutions. This assistance is also eliminated through consultancy services. In the Occupational Health and Safety Law, three different ways are stipulated for employers to fulfill their obligations arising from the Occupational Health and Safety Law No. 6331. If the employer wishes, he/she can fulfill this obligation himself or herself, either through the personnel with the qualifications determined among the employees or by receiving services from the joint health and safety units. In practice, unlike the three ways mentioned in the Law, it is seen that employers also receive “consultancy” service in the field of occupational health and safety. In the Occupational Health and Safety Law, the consultancy service that employers receive from individuals or institutions, regarding the occupational health and safety measures to be taken within the framework of Law No. 6331, differs from other consultancy contracts. In our study, the aspects of the consultancy contract made in the occupational health and safety law were examined.