One of the features of administration is that it is constantly changing, public administration reforms from date it was created, and changes, reorganizations and reforms are literally considered as its protective sign. Reasons of reforms can be economical: inducement of reforms can give changes in social-economic environment of public administration.Reforms can be induced also with administration-technical reasons, example, need for better coordination in administration system or development in administration techniques.With reforms most exposed are those parts of administration that are dealing with public services then classic department, because public services are proportionally of newest development, and in tighter contact and closer to users.The things that caused process of Europeanization and modernization in Croatia, is bringing new regulations, introduction and stabilization of new organization, employment of new staff in current institutions, changes in formal processs, changes in formal-organization structures etc.Phase of Europeanization of Croatian public administration did began in 2001.It includes significant changes in central public administration, public services (department of public interests), local and regional self-administration, service system, administrative education, commonly administrative education, commonly administration law and in system of legal protection of citizens.In all of this areas major European standards are developed, which are used as support of harmonization of public administration of European countries.