The invention discloses a scheduled power outage user determination method. The scheduled power outage user determination method includes the steps: a main and distribution integrated system receivesa maintenance work order from an OMS system and carries out equipment data matching; topology analysis is carried out according to the matched equipment in combination with a power grid model to obtain a power outage user; a power outage information file is generated; and a power outage plan is published. According to the scheduled power outage user determination method, the power outrage maintenance equipment in the maintenance work order sent by the OMS system is matched with the equipment in the main and distribution integrated system; and through topology analysis and power supply point tracking, the power outrage user influenced by final equipment maintenance can be quickly obtained; and the scheduled power outage user determination method is quick and efficient, greatly improves theservice quality of the power grid, and improves the user experience.