Andrew Coltart posted a final-round 68 to move into a share of third place. He finished at 8-under-par 280 alongside Luke Donald (70) and Robert Karlsson (69). Miguel Angel Jimenez and Carl Pettersson finished one stroke behind that trio at minus-7.
Scott remains perfect when entering the final round with at least a share of the lead. He now owns four titles on the European Tour and all four times, he led entering the final round.
'It was a real relief to go out and play well today,' said Scott. 'Hopefully I can go on from here. This win will get me back into the running for a place on the President's Cup team and I would still like to make the team.'
Scott got on the board quickly with a birdie at the par-4 second. He then dropped a shot at the fourth, his first bogey in 23 holes at Barseback Golf & Country Club. However, he quickly recovered with a birdie at the next.
After a string of five consecutive pars, Scott climbed to minus-11 with back- to-back birdies from the 11th. The young Australian then stumbled to a bogey at the par-4 14th.
He fought right back to birdie the 15th and followed that up with another birdie on 16. His lead nearly slipped away as he bogeyed the 17th, but he managed a par on the final hole to secure the title.
'I somehow managed to keep myself calm but there were some really crucial times out there when I had to hole some putts to keep myself in front and I was pleased that I managed to do that,' Scott said.
Dougherty began his day two shots behind Scott and overnight co-leader Maarten Lafeber. Dougherty made a move early on but could not sustain it over the entire round.
The Englishman birdied the second, then converted back-to-back birdies from the fifth to get to minus-9. He could not maintain that pace though. He bogeyed the eighth and 11th to fall back to 7-under.
Dougherty tried to rally again with a birdie at 12. His chances of coming back faded as he parred five straight holes, before birdieing the 18th to finish alone in second.
Coltart climbed from a share of 14th to a tie for third with his 4-under 68. He birdied the first and sixth to get his round going. Around the turn, he bogeyed the 11th, but came back to birdie the next. He capped his round with consecutive birdies from the 16th.
Peter Hedblom, Fredrik Jacobson and Jamie Spence shared eighth place at 6- under-par 282. Maarten Lafeber, who entered the final round tied for the lead with Scott, struggled to a 3-over 75. He finished at 5-under-par 283.
Michael Campbell, who won the Irish Open last week, headed a group at 4-under-par 284. He was joined there by Richard S. Johnson, Adam Mednick and Phillip Archer.
Graeme McDowell, the 2002 champion, finished well off the pace at 3-over-par 291.