The topic of this final thesis covers the area of state administration that refers to citizens and their relationship with state administration. The history of state administration in the Republic of Croatia, the relationship between citizens and the administration, the position of citizens, as well as the resulting improvements in the form of new services provided, are elaborated. The focus of the paper is on the digitization of administration as the future and the advantages and disadvantages it brings. Attention is focused on the needs of the citizens and the new challenges that the administration faces, which are the result of development and various changes that we are witnessing as a society. Through interaction, public administration and citizens create values that are more than simple policy implementation. The question arises whether transparency strengthens citizens' trust in the administration, but also in other legal institutions? The work also includes the principles by which the management's work would lead to a strengthening of trust. The accession of the Republic of Croatia to the European Union brings new changes and opportunities for the advancement of the administration, but also for better implementation and realization of citizens' rights, as well as better mutual connections. Reforms are being enacted that strengthen the quality of administration. Digitization makes all services faster, cheaper, simpler, and more efficient, and what is extremely important for citizens - more accessible. It is precisely such changes in the administration that lead to the overcoming of certain problems that the administration has faced so far. With the further development of the administration, it is possible to conclude that any change will lead to the improvement of services and everything that the administration offers as such. The focus of this paper is also on human resources that is, officials who represent an extremely important link between citizens and the administration. Human resources are key in the entire process of interaction, and it is precisely on them that the construction of quality administration and the stimulation of economic growth and development and other important aspects of the state depend.