The well-preserved medieval church contains an unusual, Romanesque antependium of gilt copper of unknown origin.

Unusually, Lyngsjö Church contains a small walled-up entrance, measuring 144 by 61 centimetres (57 in × 24 in), in the northern wall.

[1][2] Arguably the most unusual thing in the church is a richly decorated, gilt antependium or altar front.

[1] According to art historian and former deputy head of Kulturen Claes Wahlöö, it would be "better suited for the high altar of a cathedral than a countryside church".

[4] It has been suggested that it may have been imported or perhaps manufactured locally by a goldsmith – perhaps Italian or German – working at the construction site of Lund Cathedral.

The choice of motif probably had a political significance and was not an isolated curiosity: a relic of Thomas Becket was taken to Gumlösa Church, also in Skåne, at about the same time.

Henry II of England is ordering the murder from his throne; to make his identity clear, the sculptor has made a little sign next to him with the inscription REX.HRICVS (interpreted as "King Henry" in Latin) A number of soldiers with drawn swords are moving towards Becket, and he is depicted falling down, struck by one of the soldiers.

Behind him is an altar and another clerical figure with a cross; it has been interpreted as a depiction of either Edward Grim or Thomas Becket as a saint.

The rest of the sculptural decoration of the font depict traditional religious themes, such as the Coronation of the Virgin, as well as typically Romanesque grotesque beasts and imaginary animals.

[1][2][3] About 800 metres (870 yd) north of the church lies a spring that has been considered holy, probably since pre-Christian times.