The sanctuary has a ribbed vault with a pointed arch. The nave has a flat beamed ceiling. The church has Gothic wall paintings from the 15th century and a late Gothic stone relief of St. Martin of Tours. The altarpiece by Mato Celestin Medović was made in the 19th century and shows Beram's connection with the Croatian territories at that time. There are also valuable silver objects and vestments from the 15th to 17th centuries in the church. In addition to some Glagolitic inscriptions in the baptistery, there are some manuscripts in Latin from the 14th and 15th centuries, a collection of sermons from the 13th century, and the richly painted missal from the 14th century.
