Abstract: Pedestrian crossing with presence detector and warning, characterised in that it constitutes an independent and transportable constructive element, easy to assemble and dismantle, with low maintenance cost, equipped with presence detectors, warning devices, power supply system, accumulators and electronic devices (circuitry, etc.), which detects pedestrians, vehicles, or both, in a crossing zone, and alerts both drivers and pedestrians themselves, of their respective presence on said crossing, or in the proximity thereto, and provides greater road safety, reduces the risk of accidents for pedestrians due to inclement weather, reduces acoustic contamination and gives greater versatility to the use of public roads, also has uses in fixed pedestrian crossings in the form of total or partial introduction of the different elements constituting the invention or in the form, for example, of total or partial shelters for fixed crossings incorporating said elements.