A power outage plan optimization decision method aiming at reducing power outage time and quantity comprises the following steps: reading the
topology information of a distribution network, and establishing the contact relationship between distribution network components in a region to be evaluated to form a contact matrix; reading the information of each load point in the distribution network; reading power outage event information; for each type of power outage events, reading the information of maintenance teams in the region to be evaluated (including the number BN of the maintenance teams in the region to be evaluated, the ability of the maintenance teams and the daily
workload of the maintenance teams), and making clear the power outage strategy in the region to be evaluated; optimizing the power outage period; optimizing the power outage order; and displaying the result. The method takes the user's power outage time, the
user satisfaction and the team's ability into full consideration, and adopts simultaneous maintenance. For different power outage events, the
execution time of each power outage time is optimized based on the daily load curve of an affected region. Thus, the power outage time and power outage quantity of the
system are reduced effectively, reliable power supply of the
system is ensured, and the customer satisfaction is improved.