The employment relationship (employee-employer) is often one of the relationships that often creates legal problems, be it in the aspects of payroll, employment status, or termination of employment relations. This study is to describe and analyze the work relationship and obligations of the parties at PT. Esa Putlii Prakarsa Utama, as well as to find out the factors inhibiting the implementation of work relations at PT. Esa Putlii Prakarsa Utama. The method used in this research is sociological juridical by analyzing various legal regulations as well as examining behaviors and direct relationships based on understanding the law in terms of social symptoms. This study shows that the working relationship at PT. Esa Putlii Prakarsa Utama occurs because of an indefinite work agreement (PWKT). However, the entrepreneur's actions take action against the law because he has violated Article 60 paragraph (2) of Law Number 13 of 2003 concerning Manpower where employers pay wages below the minimum wage during the probationary period of work, this is null and void by law. Then regarding the rights and obligations of the parties, in principle, the obligations of workers are rights that must be accepted by employers, and vice versa, the obligations of employers are rights that must be accepted by workers. The rights and obligations of the parties can be found in labor laws, company regulations, and collective labor agreements.