Thank you, @SGaist, I followed you advise and community helped to find a solution.

The way is simple:

Open ssh session to remote host with X forwarding enabled ssh -X user@host. And get know the DISPLAY variable. For example with echo $DISPLAY. It should look like localhost:10.0. Set environment variable DISPLAY in QtCreator -> Projects -> YourConfiguration -> Run -> RunEnvironment to known value from (1). Run and enjoy remote debug with GUI on local machine.

Note: closing ssh session will make forwarded display inaccessible and invalid.