The paper presents a pilot case of scientific revision and inventory process in the zoological collection of the Georgian National Museum (Tbilisi). By the special decree of the President of Georgia, the Georgian National Museum was established in 2004. Unifying fifteen museums, the National Gallery and two scientific centers it is the largest museum complex in the country. Its zoological collection is one of the oldest in Caucasia. Among them are endemic, relict, and other rare species protected by international conventions, and many are listed as endangered or deleted species in Georgia. Considering their importance, age and overall condition of the objects and documentation the reorganization of zoological collections was started as a pilot case in rehabilitation and cataloguing of GNM collections. Complete collections of Arachnidae (Opiliones) were studied and organized; Species of the family of Trogulidae, Nemastomatidae, Sclerosomatidae, Phalangiidae, order Harvestmen (Opiliones) from the class Arachnida, have been identified. There were in total 31 Harvestmen species from 4 families (Trogulidae, Nemastomatidae, Sclerosomatidae, and Phalangiidae) identified. One species of which - Odiellus zacariensis Mkheidze, 1952, is new for Azerbaijan fauna and four species: Trogulus rossicus Silhavy, 1968, Opilio sylvestris Snegovaya 2010, Opilio caucasicus Snegovaya 2010, Opilio nabozhenkoi Snegovaya 2010 are new for the fauna of Georgia. Also two new species: Rilaena kelbajarica Snegovaya et Pkhakadze, 2014 and Phalangium mcheidzeae, Snegovaya, 2014 [5-6] have been described. Museums today aim to become a platform for developing and spreading scientific knowledge. Based on different collections: art, anthropology, archaeology, natural history etc. � they become unique catalysers for interdisciplinary studies. Object-based scientific collections can open new areas of research across different disciplines. In this regard management of museum collections, information about them and making it accessible for scholars of different research fields and countries is a main task for a modern museum. Therefore, it is crucial to systematize the objects and collections, create new knowledge in collaboration with the academia and museum professionals internationally and promote the scientific knowledge for broader audience. The outcomes of the study will enhance the process of integration of GNM collections in international museum system and academia.