how could I catch ablock in my drawing I know its name?

See the tip:http://www.cadforum.cz/cadforum_en/selecting-objects-by-name-tip7082

You can use the QSELECT command to search for blocks with a specific name, but if there are more than one of these blocks in your drawing with that name, it will find all of them, not just one.Also, QSELECT only works in the current space. So if you're in Model space, it will only find the blocks in model space. If you're in a Paper space layout, it will only find the blocks in that layout. Etc. 

QSELECT command ...IT IS GREAT COMMAND.
THAT IS REALLY HELP
THANKS ALOT