The present invention provides a wireless tag communication control device, which includes a gate through which an object having attached thereto a wireless tag passes, a sensor that is arranged at the gate and senses the existence position of the object, an antenna that is arranged at the gate and transmits an electric wave to the wireless tag, and an electric wave output adjustment unit that is connected to the antenna, wherein an electric wave transmission output from the antenna is adjusted according to the position of the object in the gate.