The GeV photon beam at SPring-8 is produced by backward-Compton scattering
of laser photons from 8 GeV electrons. The maximum energy of the photon wil
l be above 3 GeV, and the beam intensity will be 10(7) photons/sec. Polariz
ation of the photon beam will be 100 % at the maximum energy with fully pol
arized laser photons. We report the outline of the quark nuclear physics pr
oject with this high-quality high-intensity beam.