The Conservation Institute for protection of cultural heritage in Dalmatia has acted on the protection of mobile and immovable assets since 1945. After few years of interruption in World War II this Institute restarted conservation service in the Dalmatian territory. This paper presents the work of the Institute on the protection of the movable heritage from 1945 to 1950. In the brief overview it has been presented the preservation of movable heritage during the Interwar period and during the WWII when numerous Dalmatian monuments were damaged and endangered. Historical circumstances that led to changes in the organization of work were also explained. Likewise, the paper gives insight into individual initiatives and efforts of protection of the monuments during the war. The legislation adopted after 1945 represents a significant step in the development of the conservation profession. For the first time, these laws have defined norms of protection, damage preventions of artworks and preservation of monuments. Also, with these laws export and sales control of cultural assets were defined. Institute domain was the entire Dalmatia. It was managed by several employees, but gradually the number of employees was increased, as well a network of honorary conservators was set up to work in large cities along the coast. The paper explains the methodology of the conservation work of the Institute, which includes records of monuments, field research, protection of private and state collections and cooperation with honorary conservators and other institutions in the service of protection of monuments. In addition to the protection of monuments, conservators also engaged in archival work, as well as education and popularization of local cultural heritage.