The 1979–80 Michigan State Spartans men's basketball team represented Michigan State University in the 1980–81 NCAA Division I men's basketball season. The team played their home games at Jenison Field House in East Lansing, Michigan and were members of the Big Ten Conference. They were coached by Jud Heathcote in his fourth year at Michigan State. The Spartans finished the season 12–15, 6–12 in Big Ten play to finish in ninth place in conference.