Colin Taylor will step down at the end of this term after 16 years in charge.
A spokesman for Oakmeeds said Mr Taylor announced his decision following a meeting on March 1 which confirmed Oakmeeds was on track to become an academy.
Oakmeeds, in Burgess Hill, was placed in special measures in January 2014 and remained so until November, when inspectors cited Mr Taylor’s “forthright” leadership as the catalyst for improvement.
David Fry, chairman of governors, said: “Mr Taylor has had a long and distinguished career in education in West Sussex.
“He has been at Oakmeeds for 16 years and I have had the privilege of working with him as chair of governors during the last seven.
“Colin has always respected and valued the interaction with the governors and I re-iterate the comments of [Ofsted] concerning the dedication and effort which Colin has put in during the last two difficult years.
“On behalf of all the governors I wish him every success as he ventures into pastures new.”
Oakmeeds hopes to become part of The University of Brighton Academies Trust.
Mr Fry said further announcements would be made in the next few weeks.
Don’t miss out on all the latest breaking news where you live.
Here are four ways you can be sure you’ll be amongst the first to know what’s going on.
1) Make our website your homepage at www.midsussextimes.co.uk
2) Like our Facebook page at www.facebook.com/midsussextimes
3) Follow us on Twitter @midsussex_times
4) Register with us by clicking on ‘sign in’ (top right corner). You can then receive our daily newsletter AND add your point of view to stories that you read here.
And do share with your family and friends - so they don’t miss out!
The Mid Sussex Times - always the first with your local news.
Be part of it.