Read out test of inorganic-organic hybrid scintillator; Pr:LuAG single crystal covered with plastic scintillator BC-499 is demonstrated. Emission peaks of the hybrid scintillator was observed around 430 nm, which suit to the sensitive wavelength of photomultiplier tube (PMT). The Pr:LuAG sample coated with BC-499 showed the better light output than the that of Pr:LuAG itself. Light output was increased up to 30% sing PMT (Hamamatsu R9800). Decay curve of the hybrid scintillator was also measured and successfully modeled. Corporation.