The People says a contract with Super League team Shanghai Shenhua would net a minimum £250,000-a-week pay packet.
But it's the haul from merchandising deals that would be the greatest - estimated by experts at £20million.
It would take Brand Beckham - already worth £190 million - to world domination.
The move is being personally masterminded by TV's Pop Idol mogul Simon Fuller, a close pal and business associate of the Beckhams.
A source close to David revealed: "He has cracked Europe and America, he now has the chance to become huge in China and the Far East. This is a huge decision for him.
"While David wants one final challenge in football, a move to China is about more than that. It will push Brand Beckham to a whole new level."