"Terminator 2" actor Edward Furlong has plead NOT GUILTY to his most recent domestic violence charge ... stemming from this past weekend's arrest, TMZ has learned.
We broke the story ... Furlong was popped by cops on Sunday for allegedly attacking his girlfriend ... again. It's the THIRD time he'd been accused of domestic violence in three months.
Furlong entered the plea in court today -- but remains behind bars with bail set at $30,000. His lawyer requested to have the bail amount reduced ... but was shot down.
A pretrial has been set for Jan. 25th.