The football ace said he was sad not to join his friend Ryan Giggs on the 24-man squad, but acknowledged that "life goes on".
"Obviously, all the talk of me possibly performing in the Olympics, it would have been a very proud moment for me," said the 37-year-old.
"Everyone knows how proud I am of representing my country and to do it in my home town on such a big stage would have been incredible so, of course, I'm disappointed, but life goes on.
"My family are healthy, I'm pretty healthy, so at the end of the day, I'll be there to support the GB team.
"It's going to be a proud moment to be there and know that I was part of bringing the Olympics to the East End of London."
Victoria's husband said that the support he has receieved from friends and family around the world has helped him get over the disappointment.
'The support has been incredible, the letters that I've got, phone calls that I've got,' he said during an interview in LA.
"Of course, I've had support from my family and friends, they are the ones that care and know how disappointed I am and I was at the time.
"Like I said, life moves on and I hope the GB team go to the Olympics and win as many medals, as many gold medals as possible."
In the same interview the star ruled himself out of lighting the Olympic torch at the Games' opening ceremony on July 27.
The honour usually goes to a distinguished sportsman or sportswoman, but Becks has said he is not the right man for the job.
"I've always said, lighting the torch in the stadium is something that should be done by an Olympian... who has done incredible things for our country and won gold medals," he insisted.