A headrest structure is provided and includes a body and two supporting rods.The bodyincludes a covering cushion and an automated external defibrillator (AED). TheAED isenclosed by the covering cushion. Each of the supporting rods includes alinking end and acombining end opposite to the linking end, and each of the supporting rods isconnected to thebody with the linking end so as to support the body. Based on this, the AED isassembled inthe body to improve the applicability of the AED, so that patientsexperiencing cardiac arrestcan be treated properly and instantly.