Targeted drugs are cancer-inhibiting drugs that can be precisely localized at the lesion site. Clinically, targeted drugs are often used to treat certain malignant tumors, such as the use of gefitinib to treat non-small cell lung cancer. These drugs can accurately act on the cancer cells in the lesion and eliminate them. Due to their precise localization and little harm to the normal cells of the body, targeted drugs are widely used in the clinic. According to the specificity of their targets, common targeted drugs are divided into two categories: targeted drugs with specific therapeutic targets, such as gefitinib, and multikinase inhibitors with multiple therapeutic targets, such as sorafenib, etc. In particular, targeted drugs can precisely act on cancer cells in the lesion and eliminate them. It is especially worth noting that the use of targeted drugs and related medications should be in accordance with medical advice.