One of 21 people who filed formal complaints, Imro Rietveld, described growing up as the only black-skinned child in his class. Every year, he said he was subjected to a month of taunts such as "your whole family is coming over in the boat" and "can you do tricks?"
He said some people are afraid to speak out against Black Pete because they are worried about being ridiculed or even losing their jobs, and he had been warned against coming.
"For the good of all the children," Rietveld said. "This should actually be changed in the whole country."
Opponents say the Sinterklaas festival should continue, but Pete's appearance should be changed.
Mayor Eberhard van der Laan will rule on the Amsterdam permit by the end of the month.