The invention relates to a flexible color micro LED display device manufacturing method that comprises a flexible substrate with a driving circuit arranged in order from bottom to top, LED array, flexible color filter film; The flexible color filter film is prepared by preparing quantum dot polymer solutions with different luminescent wavelengths, preparing liquid polymer resins as the main bodyof the flexible color filter film, respectively printing the quantum dot polymer solutions with different luminescent wavelengths by ink jet printing mode according to the corresponding Micro- A LED array is printed on that liquid polymer resin, and the liquid polymer resin is heated or ultraviolet cure to form a high-resolution flexible color filter film. The preparation method of the invention is fast and effective, simple in structure, simple in operation and low in cost, and can be used for preparing color micro with high pixel density and high resolution. LED display device, and providesa new idea for the manufacture of flexible optoelectronic devices.