To provide a data line driving circuit device of a current-driven electroluminescence display.

A data current is received from an external signal source and a pixel end group of the electroluminescence display is driven. The data line driving circuit device of the electroluminescence display includes at least a 1st circuit group, a 2nd circuit group, and a shift register 322. The shift register 322 controls the 1st circuit group to receive the data current, and also controls the 2nd circuit group to copy the data current from the 1st circuit group and then transmit it to the pixel end group 330.