Aircraft spare part demand determination method and device based on flight mission

The invention discloses an aircraft spare part demand determination method and device based on a flight mission. The method comprises the following steps: acquiring flight mission information; judging whether the flight task information is matched with the target task or not to obtain a task judgment result; when the task judgment result is yes, processing the flight task information by using a first demand determination strategy to obtain a target spare part demand information set; when the task judgment result is negative, processing the flight task information by using a second demand determination strategy to obtain a target spare part demand information set; the target spare part demand information set comprises a plurality of pieces of target spare part demand information; the target spare part demand information is used for indicating inventory plan making of the aircraft spare parts for replacing the aircraft parts. Therefore, the accuracy of determining the spare part requirements of the aircraft und