The Editorial Notes of the first issue of the Conservative Agents' Journal, which first appeared in January 1902, states: 'At the recent annual meeting of the National Society the recommendation of the Council that "a magazine or circular be published periodically by the National Society, giving reports of its meetings and of the meetings of the various affiliated Unions" was adopted, with one dissentient only. During the discussion the feeling was generally expressed that the usefulness of the Society was largely curtailed by the absence of facilities for ascertaining the views of members - both collectively and individually - on subjects of mutual interest to them as Party Agents. It was also rightly contended that the Council had no means of acquainting the members with the important work and discussions of that body, and it was agreed that the suggested journal would supply a much-felt want.'

The Conservative Agents' Journal was initially published quarterly, for a time monthly, before returning to quarterly, by subscription, and otherwise retained the format used for its predecessor, The Tory. Each issue has its own full list of contents. Voting Rights, Campaigning, Party Discipline, Registration Cases and the entire spectrum of political subjects are discussed in special features, informed articles and letters to the editor.

In 1997 the name of the magazine was changed to The Agents' Journal, briefly changing back between 2002 and 2005.