It runs tomorrow through Thursday and draws visitors from around the Midwest.
"It is the number one show of the year for our company" according to Kevin Habeck, District Sales Manager for Patz.
Roughly 470 exhibitors are setting up at the EAA grounds in Oshkosh, to show off the latest in farm technology.
"It gets your name out there and if they have questions they can directly talk to us as far as what products we sell" says Justin Eldred, Agromatic Inc.
WPS started the show 54 years ago , as a way to promote electricity use on a farm.
"As farming has changed so has our show" say Rob Juneau, WPS Farm Show Manager. "Almost every company who is in farming today, has something that is more efficient, more technologically advanced precision, anything to save money".
No matter what color tractor you drive, or the size of your operation, the show is a learning experience.
"The main reason they come is to see the new equipment, to get their hands on the equipment that they might be using for their dairy" Habeck explains.
According to Juneau "This is really known as the buying show. It is the last show before spring planting starts so any farmers who do not have equipment that they're looking for this is where it usually happens".
While this show is already one of the largest in the Midwest, demand is growing every year for size to increase.
Roughly 100 vendors are on a waiting list.
"We try to bring only farm specific vendors here and we attract 20,000 to 25,000 farmers every year" Juneau says.
Admission is free, parking is three dollars.
To see a detailed schedule of events click here.