There are many methods of chest examination, including chest, chest X-ray, color ultrasound, CT, enhanced CT, 3D CT reconstruction, magnetic resonance, angiography coronary angiography, etc. Different methods are used to meet different purposes. Generally, chest X-ray used to be used as a routine physical examination, then slowly eliminated due to the hazards of radiation, and now switched to conventional CT for physical screening. Chest X-ray can be used for initial screening of suspected fractures as well as fracture displacement, lung inflammation, pneumothorax, hemothorax type diseases. If the amount or extent is to be clarified, CT or 3D CT reconstruction is taken. Color ultrasound is generally better in locating pleural effusion, and color ultrasound is also advantageous for cardiac, vascular and pericardial effusions. Enhanced CT and MRI are more beneficial for the diagnosis and differential diagnosis of thoracic space occupancy and pulmonary space-occupying diseases. Coronary angiography and pulmonary angiography are more useful for the examination of pulmonary emboli and coronary artery disease as well as exclusionary tests. Therefore, there are many methods of chest examination, and different methods should be adopted for different purposes.