Healy joins President Greg Dyer, Neil Maxwell, Shane Watson, Aaron Finch, Janet Torney and Moises Henriques on the Executive, after being ratified by members at the AGM.
The Australian, New South Wales, Sydney Sixers wicket-keeper has been an ACA Delegate for the past nine seasons.
ACA Chief Executive Alistair Nicholson was thrilled to have Healy onboard, after an already significant contribution as a player representative.
"To have another Australian player on the ACA Executive is a real positive moving forward," Nicholson said.
"Alyssa has been a really constructive voice in Australian cricket over the last nine years, and we are very pleased that she has come on board at the Executive level.
"The ACA has been able to achieve several significant achievements over the past 12 months, and we look forward to Alyssa contributing towards our objectives in coming years.
Nicholson also thanked Lisa Sthalekar for her contribution to the ACA over the past three years, after joining the Executive in 2014.
"Lisa has been sensational contributor to the ACA throughout her tenure," Nicholson said.
"Her influence on all aspects of Australian cricket has been of great importance over the past three years."
After signing a new MOU for cricket in September, ACA Chief Executive Alistair Nicholson highlighted several strategic priorities for the 2017-18 season including:
• Keeping player relationships strong
• Implementing the whole of game MOU
• Pushing 1500 members
• Becoming more financially sustainable
• Building the ACA brand
• Improved program delivery
• Modernised governance