A wire connector includes a connection box having two closed end walls spaced in a longitudinal direction. The connect box includes a compartment having first and second end walls spaced in a height direction. At least one partitioning wall extends from the second end wall toward but spaced from the first end wall, defining a gap. The at least one partitioning wall divides the compartment into a plurality of channels spaced in a width direction. The channels are respectively aligned with and in communication with through-holes in at least one of the closed end walls. Each channel has a first end at the first end wall and a second end at the second end wall. The first ends of the channels and the gap together define a flat receiving groove in which a conductive plate is received. An elastic pressing plate is received in each channel.