The 71-year-old actor took to Facebook to share the news with his fans.
"Yeh hai KBC ka naya aakaar .. The new face of KBC starting in August .. Now been on since 2000, with a break in between and one season done by Shah Rukh Khan," Bachchan wrote.
Bachchan has already shot for the promos for the eighth season of the show.
"The promos for the next KBC were on shoot today and they went well... Lets see how it all shapes up as the dates draw near," he wrote on his blog on June 22.