The utility model provides an instant heating type water outflow nozzle. The instant heating type water outflow nozzle comprises a nozzle body, a heating resistance wire, a temperature sensor and a power controller. A closed loop is formed by the power controller, the temperature sensor and the heating resistance wire. Whether the heating resistance wire works or not is determined by the temperature of the position of the temperature sensor so that redundant cold water in a pipeline of a water heater can be heated within the shortest time and hot water can keep running out of the water outflow nozzle all the time. Thus, it is guaranteed that the water heater just starting working can spray hot water within the shortest time, waste of cold water resources in a water pipe is avoided, and the heating energy of the water heater is fully used.