A portable medical device (1, 2) comprising a device body (10, 10') and a remote controller that operates the device body (10, 10'), wherein the device body (10, 10') comprises: a power supply unit; a driving unit that performs a drug solution administration and is driven by electric power from the power supply unit; a main-body-side wireless communication unit that outputs identification information at a predetermined cycle when the power supply unit is turned on; and a main-body-side input/output control unit that controls the drug solution administration of the driving unit and the output of the main-body-side wireless communication unit, in accordance with information received by the main-body-side wireless communication unit, and the remote controller comprises: an input unit, wherein together with a stop request of the output for the main-body-side wireless communication unit, a stop duration of the output or a restart time of the output is inputted from the input unit; and a controller-side wireless communication unit that establishes wireless connection between with the main-body-side wireless communication unit that has outputted the identification information by receiving the identification information outputted from the main-body-side wireless communication unit, and outputs, to the main-body-side wireless communication unit, information that is related to stop of the output and inputted from the input unit. a power supply unit; a driving unit that performs a drug solution administration and is driven by electric power from the power supply unit; a main-body-side wireless communication unit that outputs identification information at a predetermined cycle when the power supply unit is turned on; and a main-body-side input/output control unit that controls the drug solution administration of the driving unit and the output of the main-body-side wireless communication unit, in accordance with information received by the main-body-side wireless communication unit, and the remote controller comprises: an input unit, wherein together with a stop request of the output for the main-body-side wireless communication unit, a stop duration of the output or a restart time of the output is inputted from the input unit; and a controller-side wireless communication unit that establishes wireless connection between with the main-body-side wireless communication unit that has outputted the identification information by receiving the identification information outputted from the main-body-side wireless communication unit, and outputs, to the main-body-side wireless communication unit, information that is related to stop of the output and inputted from the input unit. an input unit, wherein together with a stop request of the output for the main-body-side wireless communication unit, a stop duration of the output or a restart time of the output is inputted from the input unit; and a controller-side wireless communication unit that establishes wireless connection between with the main-body-side wireless communication unit that has outputted the identification information by receiving the identification information outputted from the main-body-side wireless communication unit, and outputs, to the main-body-side wireless communication unit, information that is related to stop of the output and inputted from the input unit.