The article analyzes the features, concept, and legal nature of the principle of “protection of trust” in administrative law, based on the opinions of scholars in this field. It establishes that the principle of protection of trust in the administrative process is a crucial tool for ensuring legal certainty, protecting citizens‘ rights, fostering trust in state institutions, and reducing levels of conflict. The legislation of foreign countries and the Republic of Uzbekistan regarding the principle of “protection of trust,” as outlined in laws on administrative procedures or administrative procedural codes, is compared. The article examines the concept of the principle of “protection of trust” and its interpretation in the legislation of various countries, including the United Kingdom, Germany, Spain, Poland, Kazakhstan, Azerbaijan, and Uzbekistan, as well as in the regulatory acts of the European Union. The relationship between the principle of “protection of trust” (legitimate expectations) and the principle of good faith is explored, emphasizing that state bodies and individuals must respect each other‘s positions when establishing and shaping their relations. Examples from judicial practice in Uzbekistan and foreign countries regarding the application of the principle of protection of trust (legitimate expectations) by private individuals are also provided. Finally, the article proposes amendments to the Law of the Republic of Uzbekistan “On Administrative Procedures.”