Hartmann, or Hartmann surgery, is a transabdominal rectal cancer resection, proximal stoma, and distal closure procedure. Hartmann surgery, is one of the radical resections in rectal cancer. The advantage of radical resection of rectal cancer is the ability to remove the cancer in one piece with adequate margins, regional lymph nodes, accompanying blood vessels, and intact rectal mesentery, and this type of surgery includes the Miles, Dixon, and Hartmann procedures. Among them, Hartmann operation is suitable for patients with poor general condition, who cannot tolerate Miles or acute obstruction that is not suitable for Dixon operation. The specific operation involves transabdominal resection of the tumor and closure of the proximal colostomy and distal residual lumen. If there is a need for Hartmann’s surgery, it is recommended to go to a regular hospital for treatment under the guidance of a professional doctor to avoid delaying the condition.