The invention relates to the technical field of medical instruments, is suitable for the fields of medical care and the like, and particularly relates to a rehabilitation instrument for assisting patients in transporting and going to the toilet. The rehabilitation instrument mainly comprises a bottom supporting component, a main lifting component, a bearing component, an auxiliary lifting component, a sliding type seat plate and a backrest, wherein the bottom supporting component is arranged at the bottom of the rehabilitation instrument; the fixing part of the main lifting component is arranged on the bottom supporting component, and the moving part of the main lifting component is connected with the bearing component through a connecting piece; the bearing component comprises a seat frame, armrests and a seat plate guide rail; the fixing part of the auxiliary lifting component is arranged on the bearing component, and the moving part of the auxiliary lifting component is connected with a chest support; and the sliding type seat plate and the backrest slide into the seat plate guide rail from the rear part of the seat frame, and the backrest and the bearing component are arrangedand fixed together through a connecting rod. The rehabilitation instrument can achieve the function of a toilet device which is simple and convenient to operate and is convenient for a lying patient to defecate, wherein trousers are worn and taken off easily during defecation, and cleaning is convenient after defecation. In addition, safe, quick and comfortable transfer of a paralyzed patient or apatient with leg and foot injuries among a bed, a wheelchair, a toilet seat and an automobile is realized.