Hi trojan7889,
I assume you're asking whether your virtual machine disk is going to be deleted upon Parallels Desktop uninstall. If so then no, application uninstall doesn't delete VM disk, unless you specifically select the option to delete it during uninstall.
You should be able to locate your VM disk under /Users/Shared/Parallels/<Your VM name>/, all VM files (*.hdd, *.pvs) reside there.