The invention discloses a data interaction management device and a cross-database data interaction processing device and method. The data interaction management device comprises an operation management unit, a schedule execution unit and a system monitoring unit, wherein the operation management unit is used for managing operation information and recording operation running condition in the operation execution process for access of the schedule execution unit, and the operation is within the cross-database data interaction process; the schedule execution unit is used for executing operation scheduling after monitoring and scanning control information sent by an upstream database, obtaining operation information to be executed from the operation management unit and obtaining operation system resource distribution condition from the system monitoring unit, if the system resource is distributed already, the operation is executed according to the operation information obtained from the operation management unit, and operation monitoring course is initiated; the system monitoring system is used for distributing system resources for multiple kinds of operation. While ensuring data accuracy, the data interaction management device and the cross-database data interaction processing device and method plans whole system resources and achieves data interaction among multiple databases.