The move is being made after 11 years in the top seat and he will hand over the reins this summer following a recruitment process to find a successor.
Morton, 59, has served in chief executive roles in the Scottish food and drink industry for the past 20 years. In announcing his retiral from QMS, he said he had enjoyed his role at the helm of the public body, which promotes the Scotch Beef PGI, Scotch Lamb PGI and Specially Selected Pork brands.
“I have been privileged to play a role in the development of Quality Meat Scotland during the past decade and I am 100 per cent confident the organisation will continue to go from strength to strength and rise to every challenge and opportunity in the years ahead,” he said.
Morton, whose career included nine years as chief executive of United Farmers, said he intended to retain an active role in the Scottish food and drink industry and this would include consultancy and non-executive work.
QMS chairman Jim McLaren said: “QMS is very much indebted to Uel for his hard work, commitment and attention to detail over the past 11 years.”