There are many different types of chemotherapy drugs for lung cancer, and different drugs are chosen according to the patient’s condition. For example, paclitaxel plus platinum or etoposide plus platinum are commonly used in non-small cell lung cancer, while pemetrexed plus platinum are commonly used in adenocarcinoma. The following chemotherapy drugs are commonly used: 1) paclitaxel: such as paclitaxel and docetaxel; 2) platinum: such as cisplatin and lopressor; 3) other chemotherapy drugs, such as gemcitabine, pemetrexed, etoposide, etc. The technology of precise detection can provide reference for chemotherapy drug selection. The specific medication should be combined with the clinical and guided by the doctor’s face-to-face consultation.