Signs are expected to go up within days at Dalgety Bay warning children not to play on the shoreline. They will be told not to dig with buckets and spades on the sandy beach areas.
The warnings are being put up after a report found that radioactive particles found on the beach pose a potential risk to public health and action should be taken to clean it up as soon as possible.
Although the Committee on Medical Aspects of Radiation in the Environment (Comare) report concluded there is unlikely to be a link between cancer rates and the radiation contamination, it identified possible health risks through skin contact or ingestion.
The source of the radiation at Dalgety Bay is thought to be luminous instrument dials from aircraft that were buried in the area after the Second World War.
The instrument dials on the aircraft had been illuminated by paint containing radium-226.