Does perldesk support any imports from other support desks?

As far as I can tell from looking at the MySQL tables etc., it would be possible to import manually some data, but it would depend on what the data is and how good your knowledge of MySQL is...

Which support desk are you trying to import from?

Either phpsupportdesk or deskpro, i was just wondering if perl desk had such an option.

It's not built-in.
The biggest problem could be with the passwords if the algorithms for encryption are different....