The invention discloses a composite material containing water soluble quantum dots prepared by using an inorganic matter by a sol-gel method. The invention also discloses a photoluminescence composite material containing the water soluble quantum dots prepared from the composite material containing the water soluble quantum dots cured at the surface of an ultraviolet light light-emitting diode (LED). The invention also discloses a white-light composite material containing water soluble quantum dots prepared from three composite materials containing different colors of quantum dots cured at the surface of the ultraviolet light LED. A novel method for preparing the photoluminescence composite material containing the water soluble quantum dots by using the inorganic material is initiated by quick preparation of the photoluminescence composite material containing the water soluble quantum dots. The method for preparing the photoluminescence composite material containing the water soluble quantum dots is small in damage to luminescent properties of the water soluble quantum dots, and convenient to shape, and can be stored for a long period of time, and the white light can be mixed by adjusting the ratio of novel materials of red, green and blue quantum dots.