At the ceremony, the 61-year-old Foster was honored by TCM host Ben Mankiewicz and longtime friend Jamie Lee Curtis.
When Foster stood to place her footprints in the cement, she did it barefoot.
Also attending were swimmer Diana Nyad and Foster's wife, director Alexandra Hedison. Friday marked the couple's 10th anniversary.
"'The person that I have to thank the most, really, is my wife Alex, who I cannot believe was so generous to give up our 10-year anniversary day to come and do this with me," said Foster.
Foster's Hollywood career has spanned more than half a century and includes two Oscars and five Oscar nominations in total. She's appeared in Hollywood classics such as "Taxi Driver," "Silence of the Lambs" and "The Accused."
"This is my life," she told the standing room only crowd. "I love my life, and I'm so grateful that all of you guys think I'm OK."