The consortium said McDonald will share her insights on how to build, manage and secure a brand and share highlights of her career spanning 19 years as a singer and TV presenter.
McDonald will come to the conference on the back of her four-part Channel 5 series Cruising with Jane McDonald which saw the her travel to different destinations with MSC Cruises, Uniworld and Holland America Line.
The conference will be held at La Manga Club from May 21-24 with more than 160 members and 50 supplier partners signed up to attend.
The event will also include presentations, panels, Q&A sessions and award ceremonies.
Sessions during the conference will include a presentation from social media agency Ginger Juice and digital marketing specialists Clicky Media.
The Travel Trade Consultancy’s Martin Alcock is also scheduled to speak to delegates as well as visual display professional Helen Goodwin.
Andy Stark, managing director of The Global Travel Group, said: “Now in its 24th year, The Global Travel Group Conference continues to go from strength to strength. It’s key that everyone not only enjoys what is set to be a fantastic few days but also takes home practical advice and new ideas to help them drive more sales in their own business.
“Having exclusive use of The La Manga Club allows our members to connect and network with suppliers over the duration of the conference and maximise the opportunity to share best practice advice.
"Crucially we are excited to share new initiatives and benefits to our members at conference this year, watch this space.”