  A self-consistent holographic QCD model is proposed which can realize both
chiral symmetry breaking and confinement, two most important phenomena of QCD.
It is pointed out that the model can accommodate both Regge spectra of hadrons
and the linear potential between quarks. The model is formulated in the
framework of graviton-dilaton-scalar system, where the dilaton field is dual to
the dimension-2 gluon condensate and can lead to the linear confinement, while
the scalar field corresponds to the quark anti-quark condensate and can explain
the property of chiral dynamics.
