Béla Sándor was born to a family of Transylvanian origin.
In 1964, he was awarded the FIDE International Master (IM) title.
In 1957, he was the leader and trainer of Hungarian team at the 1st Women's Chess Olympiad.
In 1964, Béla Sándor worked as a consultant trainer for the Hungarian national team at the 16th Chess Olympiad in Tel Aviv.
This biographical article relating to a Hungarian chess figure is a stub.