Trust can be likened to a glue that holds citizens and the government together. In the absence of trust, collective actions are unlikely to be carried out. In addition, a certain level of trust is a must for the legitimacy of the state. However, in recent years, there has been a serious decline in the level of trust that citizens have in the state and institutions. Indeed, there are many determinants of the level of trust in the state and institutions, and these factors are examined according to different classifications in literature. In the study, the factors that affect citizens' trust in the state are addressed and analyzed under four main headings. The aim of the study is to examine how trust can be built in the state and public administration and the factors that affect trust in the state. In this context, firstly, the concepts of trust and distrust are examined in the study, then the types of trust are given, and it is mentioned that there are three types of trust. In the last part of the study, trust in the state and institutions and the factors that affect this level of trust are evaluated and analyzed under four headings. The study was prepared with a qualitative method. In the study, it was concluded that a certain level of trust in the state is important for the continuity and legitimacy of modern states. By properly analyzing the factors affecting institutional trust and taking the necessary steps and finding solutions, distrust can be eliminated and thus the legitimacy of the state can be strengthened.