Nottingham University Conservative Association says it has seen a surge in membership this year.
The association traditionally has strong support, with about 200 members.
Association president Nick Allsopp said: " A lot of people who have never been involved with the Conservatives before are joining.
"They are looking to find out more about the party, to get involved and keen to help elect more Nottingham candidates than ever before and to return a Conservative government."
Dr Rowena Holland, Nottingham South parliamentary candidate and a team from the East Midlands Conservatives, attended the Freshers' Fair.
Dr Holland said: "It's really exciting to see so many students engaged with politics."