Consisting of a set of the social network's apps that become the home screen of your Android phone, Home transforms it into "Cover Feed," a visually rich and swipe-able version of News Feed for a user's phone.
It also includes a updated version of messaging, complete with a feature Facebook has dubbed "Chat Heads," with colorful notifications that include a user's Facebook friends' pictures, CNET reported.
Facebook unveiled the software, which will be available for download to a limited number of Android phones starting April 12, at its Menlo Park headquarters.
"We're not building a phone and we're not building an operating system," Facebook head Mark Zuckerberg said. "We're building something a whole lot deeper than an ordinary app."
At the unveiling, Taiwanese phone maker HTC also announced plans for a model they've dubbed the HTC First, which will be the first smartphone to come with Facebook Home pre-installed.
It will represent a "great opportunity to bring mobile and social together," HTC chief Peter Chou said.