The invention discloses a quantum dot luminescence transparent casting glue composite material. The material is characterized in that 0.1-5wt% of a quantum dot nano material is doped into transparent high molecular casting glue for preparation to obtain the quantum dot luminescence transparent casting glue composite material. The preparation includes preparation of quantum dot luminescence material, surface modification of quantum dot luminescence material and synthesis of casting glue composite material. Compared with the prior art, the invention has the advantages of simple preparation method, convenient operation and low cost, is applicable to industrialized production of a light emitting diode, optimizes encapsulation structure and well improves luminous efficiency and color rendering of the LED, thus filling the gap of semiconductor lighting technology.