The 41-year-old, whose last victory came in the Dutch Open in 1988, carded four birdies on the day to maintain the four-stroke lead he had heading into the final round of the 54-hole tournament.
'I've been a long time without a win and when you look at the quality of the field, this has to rank as a good victory,' he said.
'The likes of Phil Price, Ronan Rafferty and Barry Lane are tough guys to beat, but there were also plenty of future stars like Nick Dougherty, John Morgan and Jamie Donaldson.'
With only one bogey all week, Mouland's consistency was the key as he eneded the tournament at 13-under-par 203.
Martin Le Mesurier, who fired a closing round 65, finished alone in second at 9-under par.
Sir Henry Cotton Rookie of the Year Nick Dougherty placed third at 5-under, one stroke ahead of Ryder Cup star Phillip Price and defending champion Sebastian Delagrange.