The　relation　of　the　spectral　angular　dispersion　with　the　fundamental　wavelength(FW)　and　the　grating　period　of　simultaneously　quasi　phase　matching(QPM)　and　group　velocity(GV)　matching　in　tilted　second　harmonic　generation　is　carried　out　in　periodically　poled　RbTiOASO(4)(PPRTA).　The　phase　matching　bandwidth　of　PPRTA　of　noncollinear　(2D)　phase　matching　with　spectral　angular　dispersion　(31.37nm,　218.41nm)　is　58　times　and　15　times　of　those　of　collinear(1D)　phase　matching(0.54nm,　14.38nm)as　the　fundamental　wavelength　is　0.8　mu　m　and　1.55　mu　m　has　been　obtained,　respectively.