can i login to mikrotik with active directory user name?

No.

Sure you can.
You can install the Microsoft RADIUS server on the server, and configure the MikroTik to use RADIUS for
the authentication.

im using microsoft NPS (radius) for hotspot, but i wana using active directory user to login via winbox in to mikrotik router.
could you please let me know witch configuration do i need for mikorotik ?
tanx

Winbox uses CHAP authentication, and Windows keeps the passwords in an encrypted datastore.
This combination doesn't work.

I asked one of the Mikrotik guys about this at MUM2012 and he said to just use the Webfig instead because webfig uses PAP.

I could tell that this was the end of the conversation, so I went and chatted with the other guests and didn't bother with it anymore.

If you want to try, click the "AAA" button in the system Users page, check "use RADIUS" and then define a RADIUS server with "login" selected.
(you could just go add "login" to the existing WPS server entry of your RADIUS configuration)