Formation of museum funds is a purposive and systematic process of identification and collection of objects that have not only museum, but also historical and cultural significance, completely reflecting the theatrical process. Objects, selected for the museum, become the valuable sources of information on the history of theatre. That’s why museum employees are challenged to find the right criteria of the selection of materials to funds, according to goals and tasks of the museum. In preparing the annual plan of formation, not only the conception, but also the tasks, appeared during the work with collections and the organization of exhibitions, are taking into account. In recent years, museum has established constant contacts with collector, photographers, theatre designers, as well as with musical and drama theatres. There are different ways to contribute to formation of our museum funds. It can be a purchase of collections or separate objects at the expense of budget; a donation of collections or objects by organizations or private persons; orders for execution of determined works. Last way of formation has appeared very recently and is usually connected with extensive exhibition activity of the museum. Decision on the admission of objects to the museum funds is taken collegially by means of the collective expertise of the value, which is realized by procurement commission consisted of specialists of different profiles, workers of exhibition and fund departments. It makes a decision on the purchase of an object and attributes it to the principal or the scientific subsidiary fund.