The 38-year-old two-time Ballon d’ or winner (2004, 2005) was given the honour on Tuesday.
He joined Pele, Garrincha, Zico and other Brazilian greats who also have footprints in the stadium’s hall of fame.
“This is one of the greatest achievements of my career,” an emotional Ronaldinho said at the ceremony.
The tribute comes during troubled times for the Brazilian, who had his passport seized by police in November.
The decision is related to a $2.5 million (£1.96m) debt.
Ronaldinho was a member of the Brazilian squad that won the 2002 FIFA World Cup co-hosted by South Korea and Japan.
He also helped Barcelona win the 2006 UEFA Champions League.