The invention discloses an intelligent practical training device based on a transformer fault simulation. The intelligent practical training device based on the transformer fault simulation comprises an upper computer, a communication conversion control module, a wireless data receiving and sending module, a fault simulator, a programmable power supply module, a test line intelligent detecting module, a test instrument module and a power supply module, wherein the upper computer is connected with the communication conversion control module and the wireless data receiving and sending module, the communication conversion control module, the fault simulator and the programmable power supply module are connected with one another, the communication conversion control module controls the working condition of the fault simulator and the working condition of the programmable power supply module, meanwhile, the communication conversion control module receives data uploaded by the fault simulator and data uploaded by the programmable power supply module, the wireless data receiving and sending module, the test line intelligent detecting module and the test instrument module are connected with one another, and any two of the wireless data receiving and sending module, the test line intelligent detecting module and the test instrument module can conduct data transmission. The intelligent practical training device based on the transformer fault simulation is high in security, good in reliability, and diversified and intelligent in function.