The survival time of advanced rectal cancer after metastasis and proliferation usually ranges from half a year to one year, which mainly depends on the treatment, and if actively treated, the patient may even survive for 3~5 years. Rectal cancer is a common malignant tumor, and the survival time of advanced rectal cancer with metastatic spread is usually half a year to one year, but the specific survival time has a big individual difference, which needs to be considered according to the patient’s own mentality and treatment, and if the patient of advanced rectal cancer cooperates with the treatment positively, he/she may even survive for 3~5 years. Don’t give up when advanced rectal cancer spreads, keep a good and optimistic mindset, actively cooperate with doctors, follow doctor’s advice, avoid staying up late and correct bad life habits, in order to improve the prognosis.