The invention discloses a white light emitting diode (LED) luminous device, which comprises an LED chip, a reflecting substrate, a base, a cap layer, a first pin and a second pin, wherein the reflecting substrate is positioned below the LED chip; a conical reflecting pit is formed on one side of the reflecting substrate facing the LED chip; an opening area of the conical reflecting pit is positioned below the LED chip; the LED chip is suspended over the conical reflecting pit; a fluorescent material is coated on one surface of the LED chip away from the reflecting substrate; the base is used for bearing the reflecting substrate and the LED chip; the reflecting substrate is embedded in the base; the base is directly connected with the second pin; the LED chip, the reflecting substrate and the base are covered by the cap layer; the one side of the cap layer facing the LED chip has a hemispherical shape; and the LED chip comprises a first electrode and a second electrode, wherein the first electrode is connected to the first pin through a metal conductive wire; and the second electrode is electrically connected with the base through a conductive adhesive and is led out of the second pin.