Abstract: The authors studied the tectonic evolution of Hefei Basin by using anintegrated analysis on the geological，geophysical and drilling data．Results show that Hefei Basin is a Mz-Cz residual basin generated by conjunct influence of Dabie Orogeny and Tanlu(Taneheng-Lujiang)Fault Zone．During the early stage of basin development，it was strongly affected by Dabie Orogeny，and during the middle and late stages of basin evolution，the affection of Tanlu faulting gradually became more important．Due to co-affection by the Dabie and the Tanlu tectonic systems，Hefei Basin experienced a series of development stages：the basement stage during the Indosinian event，the depression basin stage during the early-middie Juvassie，the foreland basin stage during the Late Jurassic，the strike-slip basin stage during the Early Cretaceous，the fault basin stage from the Late Cretaceous to the Paleogene，and the basin closure stage from the Neogene to Quaternary．