Founded in 1225, it is located at an important communications crossroads: the royal road that followed the course of the Segre – the ancient Roman Strata Cerdana – and the Via Bergistana, which came from the Pendís pass, basically for livestock. Part of the walls that surrounded the current old town, which is very picturesque and well preserved, remain from the medieval period. Highlights include the Plaça Major, the Town Hall and Customs buildings, restaurants, and alleys with portals and stairs.

In Bellver, the Romans and Arabs left their mark, and the Franks in the formation of the county of Cerdanya in the 8th century. At the end of the 12th century it suffered sacking by the Count of Foix and the Viscount of Castellbò, with the help of Cathars, who were facing the Bishop of Urgell. In the 13th century, it was the Cathars who took refuge there. In the 16th and 17th centuries it saw the fights between nyerros and cadells and in the 17th and 18th centuries it was occupied by the French. On April 27, 1937, a group of the CNT-FAI tried to enter but they failed and saw Antonio Martín, the Lame of Malaga, die from a gunshot to the head. Bellver is an active town all year round.