The present invention relates to a liquid medicine administration device. Aliquid medicine administration device (10A) includes a liquid medicine administration device main body (16) andacradle (14) to which the liquid medicine administration device main body (16) is detachably attached. The liquid medicine administration device main body (16) includes an alarm unit (38) that outputs an alarm on the basis of a notification event, and an alarm control unit (50) that stops the alarm on the basis of a change in a relative position between the cradle (14) and the liquid medicine administration device main body (16) .