The composition itself consists of two parts. The lower base is divided into three levels, with side edges adorned with convex figural decorations and the upper part constituting a realistic figure of the composer wearing a coat. Moniuszko holds musical scores in his right hand, while his left hand rests on the hurdy-gurdy, a symbol of Polish folk music, which often inspired the composer when writing, among others, works from the collection of Home Songbooks. The figure is a plaster sculpture, hollow and in natural color, covered with numerous divisions and points to make another model. On January 17, 1965, on the twentieth anniversary of the liberation of Warsaw, a statue of Stanisław Moniuszko by Jan Szczepkowski was officially unveiled in front of the right wing of the Grand Theater building. In 1936, Szczepkowski created two twin monuments of artists associated with the Grand Theater: Stanisław Moniuszko and Wojciech Bogusławski. During the Warsaw Uprising, both statues were destroyed. The damaged figure of Moniuszko was found by its author in a shed in the yard of the Ministry of Culture and Art. Both restored sculptures returned to their places in the year of opening the rebuilt Theater. According to Szczepkowski's design, the pedestal is decorated with six reliefs depicting musicians from a highlander band, embodying the qualities of stage craft.

It is 160 cm tall (260 cm with the pedestal), 68 cm wide and 103 cm deep.