The invention discloses a walking aid for cardiothoracic surgery rehabilitation nursing, and belongs to the technical field of medical nursing instruments. The walking aid comprises moving wheels, shock absorbers are fixedly connected to the top ends of the moving wheels, first front supporting legs are fixedly connected to the top ends of the shock absorbers, a fixing block is fixedly connected to the left side walls of the first front supporting legs, an infusion rod is fixedly connected to the top end of the fixing block, second front supporting legs are connected to the top end of the first front supporting leg in a matched mode, and a fixing plate is fixedly connected to the top end of the infusion rod. According to the walking aid for cardiothoracic surgery rehabilitation nursing, the height and the left-right width of the walking aid can be adjusted according to the body type of a patient, and the walking aid is convenient for the patient to use; and meanwhile, when the patientfeels tired, the chair can be provided for the patient, the patient can have a rest conveniently, the using effect is good, the bumping feeling can be reduced when the patient uses the walking aid, the comfort of the user is improved, and the patient can use the walking aid conveniently.