The invention relates to a vehicle collision-proof network early-warning method. The vehicle collision-proof network early-warning method comprises the following steps of measuring vehicle speed, acceleration and position information and storing the information; receiving location information of surrounding vehicles by a wireless mode and transmitting self-localization information outwards; displaying relative positions of the current vehicle and the surrounding vehicles on a display device of a current vehicle; calculating a distance between the current vehicle and each surrounding vehicle and judging whether the current vehicle has a collision danger by combining the speeds and the accelerations of the current vehicle and the surrounding vehicles; if collision danger exists, giving an alarm to a driver of the current vehicle in a voice manner. In the meantime, the invention provides an early warning algorithm of a vehicle under four circumstances, vehicle rear-end early-warning, overtaking early-warning, blind point early-warning and crossroad early-warning and provides a corresponding collision-proof network early-warning device and a confirmatory experiment platform.