As a method for rapidly switching multiple programs without interruption in an integrated ship navigation support system using a virtual machine, a virtualization-based multi-display switching method is provided. Display switching method in the integrated ship navigation support system according to an embodiment of the present invention comprises the steps of selecting one of a plurality of virtual machines operating simultaneously in the integrated ship navigation support system; And displaying a screen of a program executed in the selected virtual machine. As a result, it is possible to rapidly switch multiple programs without interruption through a multi-display switching based on virtualization in the integrated ship navigation support system.
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