Novel pipe-type copper-nickel composite sheet

The invention relates to a novel pipe-type copper-nickel composite sheet, which comprises a copper-nickel composite sheet and an annular liquid cooling pipe integrally formed on the edge of the outerring of the copper-nickel composite sheet by riveting or welding, wherein the liquid inlet and the liquid outlet of the annular liquid cooling pipe are both arranged above the copper-nickel compositesheet; the annular liquid cooling pipe is filled with a carrier liquid; the copper-nickel composite sheet is composed of a copper plate having a plurality of accommodation holes and nickel sheets disposed in respective accommodation holes; and the four corners of the copper plate is each provided with one positioning hole. The novel pipe-type copper-nickel composite sheet has beneficial effects that the annular liquid cooling pipe and the copper-nickel composite plate constitute an integrated structure so as to ensure a low temperature difference during a heat dissipation process and achieve ashort heat transfer path a