Mount Isa Agricultural Show Society president Anne Pittis said the decision was due to concerns for the evolving public health threat.

"The ability to ensure the event does not contribute to the spread of the pandemic and the uncertainty over how long restrictions will remain in place," Ms Pittis said.

"It is distressing and disappointing to cancel the show but it is about protecting people's health and that is more important than anything we do.

"We know many people, especially families and children will be very upset by this decision but it is a necessary and disappointing outcome of the COVID-19 outbreak."

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Ms Pittis said it was the right decision and stemming the outbreak must be a priority.

"MIASS would like to acknowledge and thank all our wonderful volunteers, vendors and sponsors for their continued support. We have been working to contact everyone who needs to know about our decision," she said.

"This safety precaution follows the Australian Government's advice of all non-essential events in Australia involving 500 or more attendees should not go ahead. If you have any queries relating to this year event, please contact the Mount Isa Show team at mountisashow@gmail.com."

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