Immunotherapy is a newly emerged treatment method, and its treatment price, regardless of the latest domestic listed drugs and foreign listed ones, on the most familiar O and K drugs, is astronomical for ordinary families. Such as O and K drugs, once every half month infusion, each time is 10000-20000 yuan, so 1 month is at least 30000-40000 yuan total cost, and to keep using it continuously, each month is 30000-40000 yuan, multiply by 12, you can know the cost to be spent. The immune drugs that are just available in China are also self-paying, but they are half as cheap as the foreign drugs. According to the current price ratio of immunotherapy drugs, the ones listed in China are half cheaper than the foreign ones, i.e. a patient’s infusion abroad is 20,000 RMB, then it is 10,000 RMB at home. At present, immunotherapy is not yet entered into medical insurance, so the current price of the drug for immunotherapy every month or even every year, or even for long-term use in the future, is not acceptable or affordable for the average family.