Various embodiments related to a near-field (short-range) communication antenna device, which is used for an electronic device, are disclosed. According to an embodiment, a near-field (short-range) communication antenna device may comprise: an electronic device cover unit; a circuit board provided inside the cover unit; a near-field (short-range) communication module, which is mounted on the circuit board, and which comprises a transmitting module and a receiving module; and first and second dielectric body units that face the transmitting module and the receiving module. In addition, various other embodiments are possible.