Jennings will join the BBL competition for the first time, after being selected by the Scorchers with pick 31(Bronze Round) in the Overseas Player Draft.
It takes immense talent and mental fortitude to play Test cricket, which Jennings has done 17 times for England.
Jennings scored a century on Test debut against India and has since forged an exceptional career across all formats in English domestic cricket.
The tall left-hander impressed during The Hundred, tallying 137 runs at 34.25 with the strike rate of 150.54 for London Spirit.
He has proven himself in a variety of conditions and is adept against pace and spin, while Jennings' leadership and character are held in equally high regard.
The talented 32-year-old is expected to be available for all of BBL|14.