At the Grand Prix of Monaco in Monte Carlo on May 23, 7,500 spectators are allowed, the government of the principality has determined on Tuesday.
Spectators must submit a negative corona test before the race.
"It is important that we keep the race with a limited number of visitors and strict hygiene regulations," said Minister Pierre Dartout.
Last year, the Monaco Grand Prix was canceled due to the corona pandemic.
The last GP on the street circuit was won in 2019 by Lewis Hamilton.
Max Verstappen finished fourth.
The Monaco race is the fifth of the Formula 1 season.
The public was only allowed in Bahrain in the first three races of the season.
The GPs of Italy (Emilia-Romagna) and Portugal (Portimão) were held without spectators.
At the GP of Spain, next weekend at the Circuit de Barcelona-Catalunya, a thousand spectators are admitted.