The event - a display of Yorkshire’s best farming, agriculture, countryside and culture - is already a sell-out and has been setting up ahead of the first day tomorrow. It runs until Friday.
Here are ten pictures from around the showground.
. Welcome to the Great Yorkshire Show
Courtney Huntley pictured in front of the Great Yorkshire Show Floral display by Jonathan Moseley. Pictures by Simon Hulme. Photo: Pictures Simon Hulme.
. Cooling Cattle
A Highland Cow is cooled down at the show as the temperatures rise in Harrogate on Monday. Photo: Simon Hulme
. Celebrity handler
Presenter Jules Hudson is pictured. with 18 year old Lucy Atkinson with her Valais Blacknose Sheep named Spot. Photo: Simon Hulme
. Keeping his cool
This Highland beast takes a shower as animals are kept cool as exhibitors set up at the Great Yorkshire Show. Photo: Simon Hulme
9. Star of the show
Moss, the sheepdog takes centre stage with presenter Christine Talbot and singer Lizzie Jones as they welcome sheepdog trials in the main ring this week for the first time. Photo: Simon Hulme
10. Herding and handling
A handler gets her cattle into position as they set up at The Great Yorkshire Show on Monday. Photo: Simon Hulme
11. Floral extravaganza
Courtney Huntley pictured in front of the Great Yorkshire Show Floral display by Jonathan Moseley. Photo: Simon Hulme