The 19-year-old burst onto the scene from the Blues’ academy last season. He was rewarded with a place in the Wales squad and scored on his debut against the Barbarians in June before touring Australia.
Robinson was delighted to commit his future to his home region and is determined to continue his rapid progress.
“I’m really pleased to get to stick around for a few years,” said Robinson. “It was an easy decision to make and I took the offer with both hands.
“This is the best rugby environment for me to be in and I’ve got a good group of friends here also, so I’m excited to be here.
“It does feel like a fresh start with [director of rugby] Phil [Davies] coming in and all the boys who are here feel it’s a good environment to be in.
“It was a bit of whirlwind last season for me, but things have sunk in now, but now it’s a new season and I’m just putting my head down and working hard.”
Robinson featured in the Blues’ 13-9 victory over Connacht on Saturday and director of rugby Davies has urged the starlet to establish himself on the international scene.
“I can see that he is a player with massive potential,” said Davies
“He’s had a couple of outings for Wales whether that is for the Sevens or for the national team against the Barbarians and in Australia.
“Now his challenge is to play regional rugby week in week out and play rugby for Wales. He’s certainly talented enough and applies himself well.”