The utility model discloses a high -speed HDI circuit board, including the collateral branch frame, the equal fixedly connected with in the both ends location strip of collateral branch frame, the inside of location strip is equipped with the shift fork groove, the first spring of inboard fixedly connected with in shift fork groove, the other end fixedly connected with shifting fork block of firstspring, shifting fork block's outside fixedly connected with shift fork piece, the inboard of collateral branch frame is hugged closely there is the circuit edition of books body, the inside both ends embedding of the circuit edition of books body has the socket, the inboard of shifting fork block's other end slip cap combination hub, the upper surface of the circuit edition of books body glues the glutinous bottom plate that has. This high -speed HDI circuit board can splice with the location strip, and the combination of convenient a plurality of circuit edition of bookss body is used, andthe component body is torn open simply with circuit edition of books body ann simultaneously to the protection of can buckling of the circuit connected the wiring mouth position of component.