Disclosed is an apparatus for fabricating a stretchable electrical circuit, including: a stretching device configured to stretch a mounted stretchable substrate in two different directions; a marking device configured to mark a mark on the stretchable substrate; an image device configured to obtain an image of the stretchable substrate on which a plurality of alignment marks are marked by the marking device; and a control device configured to control the stretching device, the image device, and the marking device. The control device forms a first axis and a second axis using the plurality of alignment marks marked on the image obtained by the image device and marks one point of a surface of the stretchable substrate with coordinates made by the first axis and the second axis using the first axis and the second axis.