A stretcher chair used for assisting in walking and defecation, having a self-cleaning function and provided with a stand assisting frame formed by retractable inner and outer tubes is formed by welding steel pipes or alloy pipes. The inner tubes are sleeved with the outer tubes so that the inner tubes can stretch and retract to achieve required effects. Various shapes like beds, chairs and stretchers are achieved through hinge connection and roller fixing, parts such as a small desk plate, a transfusion rack sleeve, a storage box, a safety belt, wheels and a defecation assisting hole are used, and functions of a nursing bed, a stretcher, the stand assisting frame, a wheelchair, a walking assisting chair, a toilet chair, a transfusion chair and an accompanying chair are achieved. After an after-defecation cleaning machine device is installed, a patient only needs to push a transmission rod by one hand to complete cleaning after defecation. After a wheelchair driving head is installed, the stretcher chair is driven by taking the wheelchair driving head as the power to make the patient walk independently in a room or on a site or a road by herself or himself. A novel product device is supported, the structure is simple, the stretcher chair is multifunctional, and the problems that patients have difficulty in relieving themselves, going upstairs and downstairs and traveling, and special patients have difficulty in standing are solved. The stretcher chair is low in price and is the first choice for families and a necessary product for hospitals.