Jaidee, a one-stroke leader after Saturday's third round, pushed his lead to four strokes with a birdie at the par-four seventh hole Sunday, and despite two late bogeys, closed out his third tournament win on the European Tour.
"My driving, putting and iron game were all good today," Jaidee, ranked No. 88 in the world, told reporters. "This is a great win for me and I would like to dedicate this to my family. It's a great feeling (and) I'm very happy to win here."
At 10-under 278 were England's Steve Webster (68) and Simon Dyson (69) and Sweden's Alexander Noren (70).
Rafael Cabrera Bello of Spain shot the day's lowest score at 7-under 65, and joined England's Richard Bland (70) in a tie for fifth at 9-under 279.