An organic electroluminescent device and a fabricating method thereof are provided. The organic electroluminescent device includes a plurality gate lines and data lines crossly arranged on a substrate for defining red, green and blue sub pixels of a pixel; a non-emitting region formed in each of the sub pixels and including a switching element and a driving element; and an emitting region formed in each of the sub pixels and including a pixel electrode connected to the corresponding driving element, wherein locations of at least two of the non-emitting regions are different from each other with respect to the corresponding sub pixels.