The 16-year-old right-back claims he has been promised a fast track to the first team and looks set to be the platform from which Wenger builds his next Arsenal side.
Bellerin, speaking to Spanish TV programme Punto Pelota, said: ‘I was at home and my father called me to say Arsenal had been on the phone.
‘We decided to go there to see how things are. I hadn’t made up my mind because I’d been at Barcelona all my life so it was very difficult.
‘But after evaluating things I decided to join Arsenal. When you want to be a professional you have to look to make your way. And I believe the right path for me was to choose Arsenal.
‘We met Mr Wenger and it went so well. It was all too much for me but I paid full attention to everything he said. When there is a team that guarantees you can play in the first team and above all in the Premier League, then it is very difficult to say no.
‘Mr Wenger was explaining to me how the club was and the project they had prepared for me and above all he wanted to get to know me.’