The invention discloses an organic light emitting display device array substrate which comprises a plurality of display screens with grid drive circuits. Each display screen comprises a plurality of grid drive detecting units for detecting the functions of the corresponding grid drive circuit, and the grid drive detecting units comprise input units, first control units, second control units, switches and output units. The input units are used for inputting input signals. The output units output output signals. The switches regulate and control the input signals under the action of the first control units and the second control units to form the output signals. The invention further provides a detecting method of the organic light emitting display device array substrate. According to the organic light emitting display device array substrate, the function of a GIP circuit can be detected after an array manufacturing process is finished, the organic light emitting display device array substrate with the poor GIP circuit obtained after detection can be repaired in time or scraped, and manufacturing cost can be lowered.