▎ 摘　　要

NOVELTY - Preparing heat dissipation film comprises preparing graphite composite film by using graphene oxide slurry, removing solvent after slicing the composite film, graphite-charring the graphene composite sheet with solvent, and graphitizing the carbonized graphene composite sheets. USE - Preparation method of high power and high thickness radiating film. ADVANTAGE - The method provides high power and high thickness radiating film, system and device with simple technique, wide in thickness range and low in cost. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: 1. a preparation system of radiating film; and 2. a preparation device of radiating film. DESCRIPTION OF DRAWING(S) - The drawing shows a flowchart illustrating the method for preparation of high power and high thickness radiating film (Drawing includes non-English language text).