i have problem to send and receive data via xbee from two nano , is nano fit xbee pro s3b or not ?
I'm not sure what you mean by "is nano fit xbee pro s3b", but there is no reason why the Nano shouldn't work with the XBee, if you have configured it correctly, connected it correctly, and written the proper code.
You are 0 for 3 in proving that you've done that.