It is located in the middle of Hierapolis and is very well preserved. it was built during the reign of Emperor Hadrian in 2nd century AD. In Emperor Severus period the cavea and the stage of theatre were restored by using the remains of another old theatre built earlier on the north of the city. Roman Theatre had a capacity of 8500 – 10000 spectators and was divided into two parts as upper and lower parts of seat by a diazoma. 

People arranged concerts, religious ceremonies, competitions in this theatre. In the friezes of the theatre some mythological scenes had been depicted.