A multi-channel electronic load device is provided to effectively measure the current and voltage characteristics of plural segmented cells at the same time through multi-channels. In a multi-channel electronic load device operated in a constant current mode, a constant current mode circuit includes an operational amplifier(OP AMP), a reference voltage source(Vref) connected to a plus terminal of the operational amplifier, a detection resistance(Rs) coupled to a minus terminal of the operational amplifier, and an input voltage unit electrically coupled with a cell to be measured. The input voltage unit has plural input terminals installed correspondently to each cell to connect plural cells in parallel. A voltmeter measures the voltage of the cells connected to each other in parallel between the input terminals, and an ampere meter measures the current of the cells. The multi-channel electronic load device measures the performance of each cell at the same time by simultaneously monitoring the current and voltage characteristics of the cells of the input voltage unit if constant current is applied to the input voltage unit as reference voltage of the reference voltage source is varied.