Abstract: Aiming at the steelmaking-continuous casting scheduling problem of a special steel plant, firstly, a multi-objective optimization scheduling model was developed, whose main evaluation indexes are furnace-caster matching degree, continuous casting heats, process waiting time, etc. Then the feasible range of product mix and production modes under different product mix conditions were analyzed by resolving the process flow structure and the operation cycle of steelmaking, refining, and continuous casting process. The scheduling problems under different production modes were solved by adjusting the operation cycle values of flexible processes on the basis of "furnace-caster matching" principle. Finally, the scheduling plans were calculated and compared with actual production data; the simulation results indicate the validity and superiority of the scheduling model and the solution strategy.