The former Canaries manager believes that the club's supporters should get behind Chris Hughton rather than create a hostile atmosphere for the quarter-final clash at Carrow Road
Lambert guided the Canaries from League One to Premier League safety before departing Carrow Road for Villa Park in the summer.
His Norfolk exit has been clouded by a legal dispute, however, with both Lambert and the club claiming breach of contract, which has soured his relationship with the Norwich supporters.
Many anticipate a hostile reception for the former Scotland international but he claims that he is focused on winning the tie and thinks the home fans should concentrate on supporting new boss Chris Hughton.
"I hope they concentrate on Chris because, if not, the obsession keeps on continuing with myself," Lambert told reporters.
"It's his club, it's his team now. People will make more of it than I actually will. I'll just get on with it.
"It's another game for me. You would like to think that the sensible ones would maybe think 'you done all right'.
"But I know I might get stick. With the things that are going on people probably don't know exactly what has happened."
Norwich are unbeaten in their last ten games in all competitions and sit in 12th place in the league, while Lambert's Villa team are just two points above the relegation zone.