"After nearly 15 years of professional rugby I'm having to retire due to injury," Tweeted Robinson.
"I'd like to thank everyone who's helped me along the way. From players, coaches, medical staff and supporters.
"A big thank you to the three clubs I've represented but especially to Cardiff RFC and the Cardiff Blues, a great club and a club which will always feel like home
"Of course I could never have done anything without the massive support of my family an friends. Looking forward to the next part of my life"
Robinson, who spent a decade at the Arms Park, most of which was alongside his brother Nicky, won 23 caps for Wales - the first and last both against this summer's opponents Japan.
He scored seven tries during his international career, including memorable touchdowns against New Zealand, Australia and France.