Kanye West has his sights set on a new business venture, and it's all about people having sex on camera -- the guy's looking to professionally dive into porn at long last ... TMZ has learned.

A rep for Yeezy tells TMZ ... Ye's been kicking around the idea of launching his own pornography studio and brand for a while -- and now, we're told he seems dead set on doing it ... 'cause he and his partners are in advanced talks to actually get something up and running.

We're told Kanye and co. have been talking about building an entire Yeezy Porn studio -- which would be part of a broader adult entertainment division at the parent Yeezy company.