Council is urging visitors to the airport to keep off the runway and apron after five complaints were received from pilots and aircraft crew in the last fortnight.
Broken Hill's airport is a certified aerodrome, and must comply with Office of Transport & Security rules and regulations, along with Civil Aviation Safety Authority regulations.
Council's Chief Operating Officer, Brendan Smith, said access to the runway or apron by unauthorised persons can attract fines in excess of $5,000.
"We've handed out fines before for unauthorised access, but our primary concern is safety," said Mr Smith.
"There's the risk of being hit by a propeller or aircraft that is taxiing or landing or taking off, and also exhaust and jet blasts from aircraft.
"Airport Reporting Officers also regularly cull birds and animals using a variety of different firearms, so there are definitely risks if we do not know people are illegally on the airfield."
The Royal Flying Doctor Service, Aero Club, and flight training schools cannot authorise a member of the public to go airside unless they are escorting them to a flight.
Non-passengers who do not hold an Aviation Security Identification Card (ASIC) and need to go airside must report to the Airport Reporting Officers (ARO).
An ARO will then issue the person with Aviation ID Australia Visitors Pass and supervise them while they are airside.