The 21 year-old has found appearances for the Millers few and far between thus far this season having only featured 6 times.
Jamie joins the Pilgrims on a one month loan and will team up with plenty of former Millers who apply their trade at York Street.
Paul Hurst and Rob Scott are joint managers while Marc Newsham and Jamie Yates are both on the playing staff.
Hursty was pleased to have landed Green and said; "We are delighted to be able to bring Jamie to the club and thank Rotherham for allowing the move to happen.
"He's versatile, he likes to attack and he's got good experience for a young lad. He's been limited this season but he's done well in the reserves and he's keen to get some more games under his belt."