Built at the end of the 1st century BC, in the time of Augustus, in the area of the local forum and the port, it was used for Roman theatrical performances.

The theater was built during the time of Augustus at the end of the 1st century BC as part of the monumentalization of the forum of the colony, making it one of the most emblematic buildings of Tarraco.

Recently, a viewpoint has been enabled on Sant Magí street, and work is ongoing to restore the theater space as well as the surrounding constructions.

For its construction, the natural slope of the terrain was exploited, similar to the Amphitheater in the same city, to carve out a portion of the seating area.

Archaeological excavations within the theater and its vicinity have unearthed significant artifacts, including capitals, friezes, columns, sculptures, and more.