A zero-dimensional luminescent material ［(Epy)2］［MnBr2I2］ was synthesized using N-ethylpyridine iodized salt (Epy)I and manganese bromide tetrahydrate (MnBr2·4H2O) as raw material at room temperature. The complex was tested by element content analysis, infrared spectrum, single crystal X-ray diffraction, powder X-ray diffraction, UV-visible absorption spectrum, photoluminescence spectrum X-ray excitation emission spectrum and so on. The single crystal X-ray diffraction results show that the complex is monoclinic, space group of C2/c, and the central Mn(Ⅱ) has a tetrahedron configuration. The crystal cell parameters are a=2.825 5(6) nm, b=0.839 71(17) nm, and c=1.836 0(4) nm. Under the UV light (λex=332 nm), the complex emits green light at 528 nm, corresponding to the tetrahedron Mn(Ⅱ) complex of 4T1(G) →6A1 radiation characteristics of the transition. Moreover, the fluorescence lifetime is 58.85 μs and the corresponding fluorescence quantum yield is 58.29%. X-ray excitation spectrum shows that the complex has high luminescence intensity, and it has certain X-ray fluorescence properties.