  We present the theory of the spin motive force in antiferromagnets. We
consider a one-dimensional antiferromagnetic domain wall strongly coupled with
conduction electrons via an exchange interaction. We carry out a unitary
transformation that rotates the spin coordinate system of the conduction
electron locally, so that the quantization axis is in the direction of the
localized spin. By numerically solving the time-dependent Schr$\"{o}$dinger
equation, we clearly demonstrate that the spin motive force acts on the
conduction electron. The result suggests that there is no distinction between
antiferromagnets and ferromagnets from the view point of the basic phenomenon
relevant to spintronics.
