Bonds sat between team CEO William Neukom and president Larry Baer in the front row next to the Giants' dugout during Monday night's game against the Los Angeles Dodgers.
Baseball's career home run king with 762, Bonds appeared relaxed as he smiled and waved during a standing ovation following the first inning.
The team showed a compilation of his home runs on the scoreboard as a tribute. The longtime Giants slugger also popped into the broadcast booth and provided some in-game commentary.
Bonds was at the ballpark on Aug. 9 last season when the Giants celebrated the 50th anniversary of their move from New York to San Francisco -- also with the Dodgers in town.
Bonds hasn't played in the majors since 2007. His perjury trial has been delayed at least through July and likely beyond, as an appeal filed by prosecutors over key evidence for the trial winds through the legal system.
The seven-time NL MVP has pleaded not guilty to lying to a grand jury in 2003 when he testified that he never knowingly used performance-enhancing drugs. He faces 10 counts of making false statements to a grand jury and one count of obstruction of justice.