Fortescue Metals Group will soon use a satellite tracking system to help monitor train movements in the Pilbara.
The radio-based system will track movements between the company's Christmas Creek mine and its export hub at Port Hedland.
Engineering firm Norfolk Group will supply the technology under a $56 million subcontract with GE Transportation, and the company said it expected work to be finished by the end of the year.
The initiative is the latest move by iron ore miners to use technology to help improve productivity in the Pilbara.
Earlier this week research house IDC said the mining industry was expected to increase spending on information technology as it looked for new ways to manage rising costs.