The invention provides a double-channel superconductive connection and a preparation method therefor. The method comprises the steps: sequentially preparing a first superconductive material layer, a first insulating material layer and a second superconductive material layer on a substrate; carrying out the etching of the second superconductive material layer and the first insulating material layer, and exposing the first superconductive material layer; carrying out the etching of the first and second superconductive material layers, and forming a double-channel superconductive connection and a Josephson junction; forming second insulating material layers on the first insulating material layer and the substrate; forming a bypass resistor; depositing a third superconductive material layer, and forming a distribution wire. The double-channel superconductive connection comprises a first channel and a second channel, which are connected in parallel. The first channel comprises a substrate, a bottom electrode, an insulating material layer, and a counter electrode. The second channel is a pure superconductive channel on the substrate. Through the improvement of a superconductive circuit diagram and the parallel connection of the pure superconductive channel during the preparation of interlayer superconductive channels, the connection and method overcome a Josephson effect of a conventional connection channel, and improve the performance of a superconductive circuit device and the stability of the superconductive circuit device.