Vaughan Parker owns Jewellery Unique near the Pit Lane car park in the centre of Swaffham.
The area hosts the town market every Saturday and sees around 40 stalls arrive to sell goods from food to clothing.
Nationwide Meats has been told by the council to park its lorry outside Mr Parker’s shop but he claims it is putting off customers.
“The lorry parks up at 6.30pm the night before completely blocking my business off,” he said.
“It has eliminated all of my trade, and going in is now simply not worth it.
“I’ve had plenty of customers coming in and complaining, it is unbelievable.”
Due of the decline in business, Mr. Parker said he had recently closed on Saturdays.
The Swaffham Town Market Committee spokeswoman stated that the market’s success “can justify such a large stall.”
“The normal view is obstructed but the meat van is now increasing the footfall into that area of the town and I would urge businesses in that area to take full advantage of these potential new customers.”
The committee added that the truck is presently used for casual trade and that it plans to move into a position in the market as soon as one opens up.
Nationwide Meats’ Mike Jacob expressed his dismay at learning about these problems and expressed his fear that the company may be “affecting the livelihood of others in the area.”
“We made inquiries through the appropriate channels at the council and obtained the necessary approval,” he stated. They give us parking and standing directions.
“We are happy to work with anyone affected and would gladly look towards resolving any of the issues that seem to have arisen.”