Poulter lived up to his ‘Postman’ tag by winning a ding-dong battle with world No.1 Dustin Johnson.
Johnson holed some monstrous putts but nothing fazes Poulter, who birdied three of the last five holes to see off Johnson and leave Europe on the brink of glory.
Bjorn’s men dominated the singles matches to spank the Yanks and spark incredible scenes at Le Golf National near Paris.
Tommy Fleetwood might have lost his game to Tony Finau, but he was carried off the course on the arms and shoulders of fans.
Fleetwood won his first four games in the first two days and is now the new golden boy of European golf.
It was just a shame there wasn’t a winning putt, because the win was confirmed when Phil Mickelson hit his tee shot into the water on the 16th to concede the match and Jim Furyk’s men were beaten.
Europe’s veterans and wildcards were the heroes of the hour.
Paul Casey battled right to the end to earn a half point from his duel with Brooks Koepka that was crucial considering Rory McIlory, Justin Rose and Tommy Fleetwood had all lost.
The US were on a charge and sensed a comeback of epic proportions, just like at Brookline in 1999.
But as the nerves started jangling up stepped those who have been there, seen it and done it all before.
Elsewhere, rookie Thorbjorn Olesen had dismantled Jordan Spieth 5&4 while Jon Rahm took the huge scalp of Tiger Woods 2UP thanks to a stunning birdie on the 17th hole.
But it was the insurance of having Francesco Molinari, Sergio Garcia and Henrik Stenson in total command of their games that left the final result in no doubt.
Molinari, who won the Open Championship in July, thrashed Phil Mickelson then jumped into the crowd to celebrate.
The Italian stallion became the first European player to win five points from five in the history of the Ryder Cup.
Garcia, meanwhile, who was criticised for getting picked following a woeful season, was also outstanding to fully justify Bjorn’s decision to take him to France.
Rahm described beating Woods as the best moment of his life and he said: “I played really good all day but didn’t make any putts so it was only fitting to hit that shot (on 17) and then make that putt.
“There were so many things going through my mind. My grandpa, my biggest fan, passed away at the PGA and to beat Tiger – one of, if not the, all-time greatest player – I was so aware of it. It is the best feeling of my life.
“If you break it down all the pressure was on Tiger. I was one up and he missed the fairway. I had a similar shot to the first and I stiffed it to four feet.
“It was a really good redemption feeling after the missed putt on 16. Everything happens for a reason I’d rather win like that than with a par.”
Molinari said: “This means so much. It’s hard not to get emotional. It means more than winning a Major. It’s been an incredible week because they had the strongest team every but we were so good.”
The US arrived in France as hot favourites but were outplayed ever since charging into a 3-1 lead from the opening session of fourballs.
Woods and Mickelson were picked as wildcards but failed to win a single point between them.