Mass Moving Reports From One Folder to Other Using Eclipse:

Mass Moving Reports From One Folder to Other

 Using Eclipse:

In the Eclipse IDE
Create a new projectInclude ‘reports’ or more specifically the report
 folders you are concerned withLet Eclipse refresh the project with the 
reports metadataIn Eclipse, navigate to the reports folder you just
download and then select the Report Folder you want the reports
 you want to move from, right click and select Properties

Take Note of the Location. This is the path where the metadata files
 are locatedOpen a windows explorer window and navigate to that path

Highlight all the Reports you want to move and right click 
CutStill in window explorer navigate back to the list of report 
folders and expand the one you want to move the reports to
 and right click and PasteNow back in the IDE highlight the
 folder titled Reports and right click and Refresh and then right
 click again and Force.com - Save to Server