Plans for a new church at Mörbylånga were drawn up in 1807 by the master builder Johan Petersson of Kalmar and reworked the following year by Axel Almfelt. The new limestone building incorporated the medieval tower, with a rectangular nave and a straight east end added behind it. Bishop Magnus Stagnelius consecrated the church in 1813. The tower's present octagonal lantern and spire, topped with a cross, date from 1872, replacing an earlier design.
The most significant change to the interior came in 1931, when the old sacristy was converted into a chancel and a new sacristy built on the north side. As part of this work the pulpit, made in 1746 by Anders Dahlström the elder, was moved to the north-east corner of the nave, and a new altarpiece was commissioned. A further restoration in 1966 saw the wooden barrel vault, previously plastered, given a panelled finish, while a restoration by Jerk Alton in 1999–2000 introduced the current free-standing altar and pews.
Among the church's oldest features are runestones and, in the porch, stone benches said to date from the medieval period. Inside, visitors can see a crucifix believed to date from the thirteenth century, alongside a later triumphal crucifix with a Christ figure carved in the early 1930s. The altarpiece, painted in 1931 by Nils Asplund, depicts the Adoration of the Magi and sits within a surround featuring an all-seeing eye of God.
The church's organ history reflects several rebuilds: an early nineteenth-century instrument was rejected on inspection, and later organs were built in 1854, 1911 and the 1940s before the present organ was installed in 1966 by Hammarbergs Orgelbyggeri of Gothenburg, later fitted with a cymbelstjärna (a decorative bell device) and a birdsong stop.
A votive ship named Dagmar, a traditional maritime offering found in many Swedish coastal churches, also hangs within the building, a reminder of Öland's long relationship with the sea.