The optimal model and simulating model of the Hanjiang cascade reservoirs operation with one day as its calculating period are established to coordinate the contradictions between power generating and shipping. The optimal model is solved by progressive optimality algorithm method adopting the theory of large system decomposing and coordinating. By analyzing the water allocation results obtained from six schemes, which are two cascades, four cascades and seven cascades joint operation considering shipping or not, the contradiction degree between power generating and shipping is investigated and some joint operation schemes are proposed. The optimal model and simulating model of the Hanjiang cascade reservoirs operation with one day as its calculating period establish are coordinate to contradictions between power generating and shipping. The optimal model is solved by progressive optimality algorithm method the the theory of large system decomposing and coordinating . By analyzing the water allocation results obtained from six schemes, which are two cascades, four cascades and seven cascades joint operation consulting shipping or not, the contradiction degree between power generating and shipping is investigated and some joint operation schemes are are.