The invention discloses an aircraft crew scheduling method, which comprises the following steps: (1) acquiring original data meeting requirements of a user from a user interface and a database, and analyzing, converting and arranging the original data to acquire all essential data meeting required forms; (2) carrying constraint control on the essential data according to a scheduling rule, generating all probably scheduled task combinations for each aircraft crew, namely generating a relative task string LoW for each aircraft crew, and evaluating and correcting the task strings LoW; (3) converting all corrected task strings into a task column and establishing a constraint matrix; (4) solving the constraint matrix by utilizing an algorithm of disassembling a large-scale problem formed by integer programming problems into sub problems; and (5) outputting calculation results. The invention further discloses a system for realizing the aircraft crew scheduling method, wherein the system comprises a data input module, a model generation module, a solving module, a control module, a basic module and the like. According to the system for realizing the aircraft crew scheduling method, disclosed by the invention, requirements on equitable distribution of flight number plane, aircraft crew scheduling and flight task are met through cooperation of all modules.