The number of days of the course of chemotherapy for pancreatic cancer is obviously related to the chemotherapy drugs and the patient’s tolerance level. The number of days of the course of chemotherapy varies with different chemotherapy regimens and different reactions of patients, and usually stops for about 1-2 weeks before the next course of treatment. In the case of gemcitabine regimen, the first seven weeks and then a week’s rest, once a week IV gemcitabine, and then changed to a four-week regimen, three weeks in a row, a week’s rest for a course of treatment. Currently commonly used chemotherapy program is also albumin paclitaxel, usually used once every three weeks; can also use tiglio capsules, usually given orally for 21 days, rest 14 days as a treatment cycle. The interval can be shortened to 7 days if the patient has normal liver and kidney function, normal blood sampling, and no gastrointestinal discomfort while taking the medication. The specific duration of treatment can be modified according to the patient’s tolerance level. If the patient has intolerable situation, or the liver and kidney function or white blood cells are seriously damaged, the drug dosage as well as the duration of chemotherapy need to be adjusted, and only when the patient’s nutrition recovers, the liver function recovers, and the white blood cells are normal, can the patient consider the further sex of the next chemotherapy regimen. Pancreatic cancer patients should go to the hospital in time, under the guidance of oncologists, to improve the relevant examination and treatment.