The present disclosure provides an OLED display panel, including a substrate and a plurality of pixel regions disposed on the substrate and emitting light in different colors. A pixel region includes a first electrode, a first auxiliary light-emitting layer, a light-emitting layer, a second auxiliary light-emitting layer, and a second electrode. A micro-cavity structure is formed between the first electrode and the second electrode. The second auxiliary light-emitting layer includes at least a first sub-auxiliary light-emitting layer. The second auxiliary light-emitting layer corresponding to the pixel regions emitting light in at least one color also includes a second sub-auxiliary light-emitting layer. At least one of the first sub-auxiliary light-emitting layer and the second sub-auxiliary light-emitting layer is made of at least a first electron-type material. The second sub-auxiliary light-emitting layer has a zero-field electron mobility greater than or equal to a pre-determined threshold.