Rupert Penry-Jones, Phil Davis and Steve Pemberton will reprise their roles as Chandler, Miles and Buchan, to solve a series of copycat murders reminiscent of crimes committed by the infamous Krays.
ITV's Director of Drama Commissioning Laura Mackie, says: "Whitechapel II will be full of the history, texture and detail that gave the first series a distinctive personality.
"It will be as audacious and compelling as the first series, strengthened by further character development and very real personal jeopardy. We're delighted to be commissioning more episodes following the success of Whitechapel I."
Pre-production begins in autumn 2009.