Amy Winehouse died Saturday at the age of 27. The cause of her death has not yet been determined.
The Grammy Award winner's once-bright career was eclipsed in recent years by reports of her erratic behavior, as well as her drug and drinking binges.
Speaking at her funeral Tuesday, Mitch Winehouse said he wants to help others avoid similar fates.
"If you cannot afford a private rehabilitation clinic, there is a two-year waiting list for help," the BBC quoted Mitch Winehouse as saying.
British politician Keith Vaz has offered to lend a hand in organizing the foundation, the British broadcaster said.
"I am very happy to help Mitch in any way I can with his important campaign to help rehabilitate those most vulnerable in our society," Vaz said.