The invention provides an OLED display panel and the production process thereof, which relates to the technical field of display, may improve the surface flatness and the water-oxygen permeation resistance of the flexible base substrate, improve the light output ratio of the display panel, and may control the center wavelength of the electroluminescence spectrum. The display panel comprises an anode and a cathode provided on a flexible base substrate, and an organic material functional layer situated between the anode and the cathode, and it further comprises a reticular light output coupling layer provided on the flexible base substrate and contacting the flexible base substrate; the anode, the cathode, the organic material functional layer are all provided on the reticular light output coupling layer; the reticular light output coupling layer, the anode and the cathode, and the organic material functional layer compose a micro-cavity; the micro-cavity is used for controlling the center wavelength of the electroluminescence spectrum and the light output ratio. The material of the reticular light output coupling layer is a reticular high molecular material having a high refractive index and a low absorptivity in the visible light range; and it is used for the production of the flexible OLED display panel.