The invention discloses biochemical efficient sewage treatment equipment which comprises a treatment tank and a sedimentation tank, wherein a planting plate is fixedly mounted at the bottom of a left end of the treatment tank; a connecting rod is arranged at an upper end of the planting plate; the connecting rod is detachably connected with a biological attachment rod; a rotating motor is arranged on a right side of the treatment tank; an output shaft of the rotating motor is connected with a rotating shaft; a plurality of stirring bars are welded on the rotating shaft; the sedimentation tank is arranged on the right side of the treatment tank; a connecting pipe is arranged between the sedimentation tank and the treatment tank; an inclined surface is arranged at the bottom of the sedimentation tank; a driving shaft is arranged at the upper end of the inclined surface; two layers of screen meshes are arranged at a position of the connecting pipe above one end of the sedimentation tank; a cobblestone layer is filled between the screen meshes on both sides; a quartz sand layer is laid at the upper end of the screen mesh of an upper layer. The biochemical efficient sewage treatment equipment provided by the invention is simple in structure and reasonable in design, capable of greatly improving sewage treatment quality, and also capable of rapidly discharging sludge.