Noren was the overnight leader heading into the final day after opening rounds of 67, 65 and 65.
The Swede held his nerve on Sunday to card a 69 to finish on 18 under par, two shots ahead of nearest challenger Bernd Wiesberger of Austria.
Englishman Lee Westwood finished in third place on -15, ahead of compatriots Richard Bland and Tommy Fleetwood who finished in a five-way tie for fourth on -13.
Noren led throughout but did drop into a share of the lead when Wiesberger holed his 12-foot birdie putt at the 15th to join him on 16 under, but he immediately regained the lead with a birdie of his own at the 15th to get back to -17.
The 34-year-old finished his round with another birdie to claim his third European Tour title of the season and the seventh of his career.