This marks a slight fall since 2006, when 7,430 cases were reported, and this is being attributed to a drop in the number of infections due to heterosexual transmission in Africa.
However, concerns remain over the high number of new infections among the gay community in Britain, with more than a third of diagnoses in 2007 reported to be in gay men.
The year was the third in a row in which new diagnoses among gay men have exceeded the 2,600 mark.
Dr Valerie Delpach, head of HIV surveillance at the Health Protection Agency, confirmed that gay men are most at risk of acquiring HIV in the UK.
"We need to reinforce the safe sex message for gay men that the best way to protect yourself from contracting HIV is practising safer sex by using a condom with all new and casual partners," she said.