The present application provides an array base plate and a detecting method thereof, and a light emitting apparatus, which relates to the technical field of displaying. The array base plate includes: a substrate, wherein the substrate includes a plurality of first light transmitting areas; and a first conductive layer located on the substrate; the first conductive layer includes a plurality of conductive-pad groups, and each of the conductive-pad groups includes at least one conductive pad; an overlapping area exists between an orthographic-projection area of the conductive pad on the substrate and one of the first light transmitting areas; and a transmittance of parts of the substrate that are located at the first light transmitting areas is greater than or equal to a first preset value.