The invention discloses an array substrate, a driving method thereof, an electroluminescent display panel and a display device. The array substrate comprises luminescent devices, pixel circuits coupled to the luminescent devices and voltage control circuits. At least two pixel circuits in the same row share one voltage control circuit, under control of a control signal input end, the voltage control circuit provides a signal of a high-level power supply end for the first pole of each coupled driving transistor, the structure of each pixel circuit is simplified, the occupation area of the pixelcircuit is reduced, and the electroluminescent display panel can realize a high resolution. In addition, the grid voltage is written into the driving transistors and the voltage is written into the second poles of the driving transistors more accurately.