Axino dark matter with R-parity violation and 130 GeV gamma-ray line

We show that decaying axino dark matter with R-parity violation can explain the observed excess of the 130GeV gamma-ray line from the Galactic center in the Fermi data. The branching fraction of the axino decay into monochromatic photons can be O(1), and constraints from continuum gamma-rays and the anti-proton flux are ameliorated. The Peccei-Quinn scale of $O({10}^{13}-{10}^{14})$,GeV and the R-parity violation parameter of $O({10}^{-12}-{10}^{-11})$ are cosmologically favored.