The invention provides an intelligent warning device for an electric pole stay wire. A triggering device of a warning constituting device of the intelligent warning device for an electric pole stay wire includes a solar power supply device which is connected with a motor, an infrared sensor and a control switch in series, a line where the solar power supply device, motor and infrared sensing device are are also connected with a first circuit and a second circuit in parallel, a normally closed switch is arranged on the first circuit, a warning device is connected on the second circuit in series, and the warning device includes warning lights and a warning bell; the infrared sensing device includes an infrared generator and an infrared receiver, the infrared receiver is electrically connected with a control device, and the control device is electrically connected with the motor; and the motor is in transmission connection with warning mechanisms with the warning lights and the warning bell. The warning mechanisms are driven by the motor to move, the warning bell gives out alarm sound, the warning lights give out a warning of danger, and the warning mechanisms can provide warning prompts to people, and can also dispel animals through warning bells and warning lamplight.