Originally the population were along the coast, then moved more in the hinterland when after the fall of the Roman Empire, pirate attacks were more frequent. In the 11th century there was a Villa called Masones de Capras (house of goats) possibly an ancient settlement of shepherds, and the goat is included in the coatofarms, together with the muggine (striped bass) called also the "gold of Cabras" for its abundance. At that time it was under the Judges of Arborea, who established a fortress in the Castello di Cabras. In the 13th cencury Benedictine and Camaldolenses monks obtained fishing rights in the ponds Mar'e Pontis and Mistras, and fish was largely exported throughout the Middle Ages. In 1479 the territory came under the control of the Aragonese monarchy, and after that followed the destiny of Sardinia, and in 1720 was included in the Piedmon Kingdom under the Savoy.
Since time immemioral the economy was based on goat rearing, fishing, and cultivation of olive trees, vineyards and almond trees.
Since 1983 fishing in the ponds is under the control of the region, which entrust the activity to cooperatives of local fishermen.