The interior is divided into three naves plus a polygonal choir. There are two sacristies. The pictorial furniture can be dated around the sixteenth - seventeenth centuries. There are frescoes by Marco from Mel, works by Marescalchi and seventeenth-century paintings attributable to the painter A. Zocco. On the right side altar there is a work by F. Frigimelica depicting a Madonna with Child and S. Giovannino.
The organ of Callido dated 1600 has been recently restored.