This invention relates to a body lifting device for use in combination with a bed. Conducting tubes are disposed at a side of the bed and near a patients shoulder, hip, and knees, and is supported by the bed. Lifting rods are disposed each into one of the conducting tubes. The upper ends of the lifting rods are fixed to a lifting handle of a lifting mechanism. During use, the lifting mechanism or a fabric is placed under the patient a driving mechanism pushes up the lifting rods to lift the patient. Thus, its convenient for a nurse to replace bedding and take a bath for the patient. Also, its beneficial for keeping air flowing through under the patient and avoiding bedsores. The body lifting device in combination with a bed solves a series of problems in elderly and patient care, makes elderly and patient care easier, and provides overall care for the patient.