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We consider a singlet Dirac fermion with Peccei-Quinn(PQ) symmetry as darkmatter. A singlet complex scalar is introduced to mediate between dark matterand the SM through Higgs portal interaction and electroweak PQ anomalies. Weshow that a resonant annihilation of dark matter with axion mediation canexplain the monochromatic photon line of the Fermi LAT data at 130 GeV byanomaly interactions while the annihilation cross section with Higgs portalinteraction is p-wave suppressed. We discuss the interplay between the directdetection of the fermion dark matter and the collider search of Higgs-likescalars. We also present a ultra-violet completion of the dark matter modelinto the NMSSM with PQ symmetry.

Fermi Gamma Ray Line at 130 GeV from Axion-Mediated Dark Matter