The Prince of Wales and the Duchess of Cornwall will make it a genuinely Royal Norfolk Show next week.
The couple will spend time at the show on the opening day, Wednesday, meeting exhibitors and officials and joining in this annual celebration of farming, food and country life in the county.
Prince Charles last visited the show when he was its president in 2004.
And Mark Nicholas, the show and programmes directors, said: “This year’s show is going to be a great celebration of our heritage and of our agricultural industries.
“We are looking forward to showing Their Royal Highnesses the very best Norfolk has to offer at the UK’s largest two-day county show.”
The organisers have lined up another feast of exhibits, displays, livestock competitions and entertainment for visitors.
The livestock section will see more than 1300 horses competing for trophies and rosettes along with a top-class entry of cattle, sheep, goats, pigs, small livestock and poultry all out to impress the judges.
The main arena programme will include the RAF Falcons parachute display team, the Boldling Dogs motorcycle stunt team, pony scurry driving, show jumping, marching bands and the daily parade of champion horses and cattle.
One of the highlights will be the Real Horse Power spectacular featuring the largest gathering of heavy horses and vintage horse-drawn machinery seen in Norfolk for generations and reflecting the importance of agricultural production on the county through the ages.
There will be nearly 700 trade stands and retail outlets, a food hall and cookery theatre, plus a flower and garden show with BBC TV Gardeners’ World presenter Monty Don .
Special areas of the showground will be devoted to the countryside and rural pursuits with ‘have a go’ opportunities for visitors, a sports village, an innovation hub, the Rare Breeds Survival Trust, the popular Sheep Show and dozens of county organisations including many from the west of the county.
RAF Marham has chosen the show as a platform to celebrate its centenary and, weather permitting, there will be a flypast by a Spitfire from the Battle of Britain Memorial Flight.
The showground, which is at Costessey, to the west of Norwich, opens at 8.30am each day.