The world football chief said anyone found to have committed abuse should be banned from the sport "without question" and face criminal charges.
"There are few things in life, not just football life, worse than child (sex) abuse, so it has to be taken seriously," he told reporters after a three-day FIFA summit in Singapore.
"There must be zero tolerance from a football perspective, but also a criminal perspective as well," Infantino added.
"We probably have to look into that with more care and more attention in order to prevent any potential child abuse in the future," he said.
About 20 former players have spoken out over alleged abuse at the hands of their coaches. The English Football Association has promised to investigate the claims.
According to reports, 55 clubs have been named to police and 18 different police forces across the country are investigating claims.
The scandal blew up as former Crewe Alexandra youth scout Barry Bennell, a convicted paedophile, was charged with abusing players last week.
FIFA chief says `zero tolerance` for sex abuse
08 December 2016
Read: 1465
FIFA president Gianni Infantino on Thursday vowed "zero tolerance" for child sex abuse in football following an escalating scandal involving coaches and former players in England.
