Beckham, formerly of Manchester United, arrived in Japan with his wife, former Spice Girl Victoria, on Wednesday to the screams of hundreds of fans.
He will promote chocolates and beauty treatments before moving on to Thailand, Malaysia and Vietnam where his ever-changing looks sell motor oil.
"No questions about his relationship with any Manchester United personnel -- managers, team mates, owners, etc," said a media advisory faxed by engine oil maker Castrol to Reuters in the Thai capital.
"No questions about Victoria's career. No questions about how much he is paid by any club or any sponsor," it said.
"Beckham simply will not address any controversial points or subjects. Any media that does ask such questions will not be permitted to ask any additional questions."
The media advisory said journalists were "encouraged" to ask Beckham about football in Asia, his World Cup experience, his goals, dreams, children and heroes.
It also said organisers would not allow photographers to take photos of Beckham in "unsuitable positions and angles" during a promotional footballing event, adding that all images, which must be digital, would be checked.
