Van Basten is currently in charge of Holland but
announced in December he would not be renewing his
contract following the summer showpiece in Austria and
Switzerland.
He has agreed a four-year deal at the Amsterdam Arena
which starts on July 1.
Van Basten's assistants John van't Schip and Rob
Witschge will also move to Ajax this summer.
The 43-year-old, who had a spell coaching Ajax's
reserves in the 2003/04 season, will take over from
Adrie Koster who has been in caretaker charge since
Henk ten Cate quit the post in October to become part
of Avram Grant's backroom staff at Chelsea.