As China ushers in a once-in-a-decade leadership change with the start of the ruling Communist Party's congress on Thursday, a senior member of the Chinese government says the new generation of leaders will maintain the status quo - continuing policies of the outgoing team.

"In China the power shift already has some institutional arrangement. I think policies have already been made in the past, so the new leaders will follow the existing policies," Cheng Siwei, vice chairman of the Standing Committee of the National People's Congress, the powerful ruling body,  told CNBC in an exclusive interview.