This disclosure provides an OLED display apparatus and the production method thereof, for decreasing the microcavity effect and improving the intensity of the light emitted by the OLED display apparatus. The OLED display apparatus comprises: an array substrate and an OLED device which is provided on the array substrate and comprises an anode, an organic light-emitting layer and a cathode in this order along the direction away from the array substrate, and further comprises: a refractive layer positioned between the array substrate and the anode, wherein the refractive index of the refractive layer is greater than that of the anode. In the above-mentioned OLED display apparatus, by providing a refractive layer, the refractive index of which is greater than that of an anode in an OLED device, the occurrence of total reflection phenomenon when light is irradiated onto an array substrate is reduced and thereby the microcavity effect is reduced, and it is allowed that the light is refracted from the surface of the array substrate as much as possible and the light-emitting intensity of the OLED display apparatus is improved.