The invention discloses a transformer insulating resistance and absorption ratio simulation practical training device, and the device comprises a high-voltage side wiring terminal, a low-voltage side wiring terminal, and a grounding terminal. A resistive load for an insulation resistance test is connected between the high-voltage side wiring terminal and the low-voltage side wiring terminal through a control switch. A resistive load for the insulation resistance test is connected between the high-voltage wiring terminal and the grounding terminal through a control switch. A resistive load for the insulation resistance test is connected between the low-voltage wiring terminal and the grounding terminal through a control switch. Each control switch is electrically connected with a controller, and the controller is used for outputting a control signal according to an instruction signal of an operator, and controlling the on/off of each control switch. According to the invention, the device employs an electronic circuit or module to replace the internal structure of a transformer, so as to achieve the simulation of the insulating resistance and an absorption ratio of the transformer. The device is used for teaching training, is wide in application range, is small in consumed power, and accords with the reality of a scene.