An impressive start to life with the Falcons after graduating from university has seen the 24-year-old break into the squad, and his ability to play in the second and back row adds to the options on offer at Kingston Park.
"I'm delighted. It's nice to commit my long-term future to the club and it's a weight off your shoulders to get it sorted, which adds to the excitement for the new season," Robinson revealed to the club's website.
"I've taken the opportunities I've been given and really enjoyed them. I was fortunate to get a chance to play at Rotherham too and that really helped my game so I'm grateful to them; that opportunity to go from university rugby to Championship to European and then Premiership all helped me.
"This season I'm just setting out to work on my game and improve that."
Robinson spent time with Championship side Rotherham Titans at the start of last season before returning to Newcastle to make 11 appearances.