A pixel circuit, an organic electroluminescent display panel and a display device are provided. The pixel circuit includes a drive sub-module (1), a data write sub-module (2), a touch detection sub-module (3) having a photosensitive device and a light-emitting control sub-module (4) having a luminous device. Under the control of the reset signal terminal (Reset), the scan signal terminal (Scan) and the data signal terminal (Data), a data signal is transmitted to the first terminal (1a) of the drive sub-module (1) by the data write sub-module (2). Under the control of the touch control signal terminal (Select), the touch detection sub-module (3) controls output of a touch detection signal from the drive sub-module (1) to the touch signal read terminal, the touch detection signal being decreased as the light intensity irradiated onto the photosensitive device is increased, so as to realize a touch function. Under the control of the light-emitting control signal terminal (EM), the light-emitting control sub-module (4) controls the drive sub-module to drive the luminous device (1) to give off light, so as to realize a display function. Touch and display functions are integrated in the pixel circuit, so that the production cost involved in arranging a display driving circuit and a touch circuit separately can be saved.