Abstract: Objective In recent years, some progress has been made in the intervention of traditional Chinese medicine on hypothermia. Foot points are abundant, which is a common body part for external treatment of traditional Chinese medicine. This study analyzed the effect of foot heat ironing on hypothermia in patients with tumor after general anesthesia, thus to provide reference for postoperative hypothermia intervention. Methods According to the relevant criteria of this study, 80 patients with general anesthesia in our hospital were randomly divided into two groups by drawing lots, and the control group was controlled by room temperature. Routine nursing care, such as covering bedding and so on, was used in the observation group. After heating in the incubator, the observation group was wrapped with a small towel and ironed for 20 minutes at the points of Yongquan and Chongyang respectively. The temperature of the patients before operation and returning to the ward was recorded, and the temperature of the foot back was recorded, and the temperature of the foot was recorded, as well as the recovery time of foot skin to basic body temperature and the time of shivering retreat, the time of subjective cold feeling regression, the evaluation of the degree of shivering in the two groups, and the investigation of nursing satisfaction. Results There was no significant difference in body temperature and skin temperature between the two groups before operation and back to ward (all P>0.05), the time to recover back temperature to basic body temperature in the observation group was shorter than that in the control group (all P<0.001), and the time of shivering subsiding in the observation group was less than that in the control group. The disappearance time of subjective cold feeling was shorter than that of the control group (all P<0.001), the rate of shivering in the observation group was 15.00%, which was lower than 30.00% in the control group (χ²=2.581, P=0.108), and the nursing satisfaction rate (90.00%) was higher than (72.50%) in the control group (χ²=4.021, P=0.045). Conclusion The nursing care of foot hot ironing can promote hypothermia of tumor patients after general anesthesia, eliminate the discomfort caused by shivering and hypothermia as soon as possible, reduce the occurrence of severe shivering, and improve nursing satisfaction.