For the convolute problems of wire in different lengths and diameters, introduce a new design of electrical convolute equipment which can convolute five kinds of wires in the vehicle. Via the slowing the speed, the equipment make the wheel rotating and convoluting kinds of wire. In the paper, all the parameters in the design’s course the time for the wires convolute and the timesaving strategy is given. At last, the example proved the validity of the equipment.