Worker participation in decision making between workers and employers in the Republic of Croatia is regulated in detail by the provisions of the Labor Law (Official Gazette 93/14, 127/17, 98/19, 151/22, 64/23) and is based on the Constitution of the Republic of Croatia, which represents the highest legal act of the Republic of Croatia. Worker participation in decision making reduces inequalities resulting from different economic power, force, rights and ownership. According to the Labor Law, there are three ways of worker participation in decision making, i.e., workers' council, workers' meetin gs and workers' representatives in the employer's body. By participating in these bodies, workers are enabled to protect their rights and interests in social and economic terms. The accession of the Republic of Croatia to the European Union represents the beginning of the regulation of labour relations in accordance with the legal standards of this association , especially the part that focuses on worker participation in decision making. In this paper, different forms of decision making between the workers a nd the employer have been elaborated, particularly being emphasized the role of the workers’ council in realization of workers’ rights and interests. Further, fundamental powers of the workers’ council and its duties have been listed, as well as the proced ure for its establishment. The workers’ council is a body that, by means of its representatives, represents all workers employed by a particular employer. It has been aimed at highlighting the advantages of establishing bodies and associations that promote workers' rights. By establishing a workers’ council, workers have the opportunity to directly influence decision making and present their proposals. By clarifying the concepts of trade union and workers’ council, their similarities and differences have be en listed. The aim of the work is to point out the rights and obligations arising from the institution of worker participation in decision making while respecting certain legal regulations.