EXCLUSIVE

"That 70s Show" star Lisa Robin Kelly has been arrested AGAIN -- this time the 42-year-old was busted for assaulting a man in North Carolina ... TMZ has learned.

According to the police report, obtained by TMZ, Kelly -- who played Eric Foreman's sister on the sitcom -- both Kelly and a male (identified as her husband) were each arrested last night following a violent incident at their home in which they allegedly assaulted each other.

Cops say there were no visible injuries -- and no drugs or alcohol were involved.

Both Kelly and the 61-year-old man are still in custody.

Kelly is no stranger to the law -- she was busted for spousal abuse back in March (the charges were eventually dropped) ... and she pled guilty to DUI back in 2010.