The utility model provides a deformation slope excavation structure is upright emptyd suddenly to height, including slope body excavation face and toe excavation face, the slope body excavates bread and draws together horizontal subregion section and perpendicular layered structure, is equipped with a plurality of tunnel excavation mouths on the toe excavation face, is equipped with the rock bench between a plurality of tunnel excavation mouths, the internal tunnel that is equipped with in slope, tunnel outside -in include rock stopper section and tunnel section in proper order, and rock stopper section includes an inlet transition that is close to toe excavation face, are connected to form for preceding half section of second half section of rock stopper section and tunnel section and go up flat section, and second half section of tunnel section is crooked to be formed and upward bend section. Being favorable to excavating the stability of structure, upright reserving big rock bench between the tunnel of section as far as possible at the toe and form and keep off a structure, the tunnel excavation process adopts a scheme of reserving the rock stopper to the rock stopper adopts the order construction in jump storehouse, is favorable to the side slope to keep the monolithic stability, ensures to empty the deformation behaviour of warping the side slope and satisfies construction time requirement and permanent stable requirement of operation period with stability.