An intelligent construction cone includes a light pervious body rotatable relative to a body. A rotating device is mounted to the light pervious body and driven by a driving device to rotate the light pervious body. A distance detector sends a distance signal to a controller coupled to the driving device. The distance detector is jointly rotatable with the light pervious body to eliminate detection dead angle. A warning device is coupled to the controller and generates a warning message responsive to the distance signal. A lighting device is coupled to the controller and provides illumination. A light sensor and a humidity sensor are coupled to the controller and detect environmental brightness and environmental humidity, respectively. The warning message and intensity of the illumination are adjusted according to a distance between an object and the distance detector, the environmental brightness, and the environmental humidity.