Pneumoconiosis refers to the disease caused by long-term inhalation of dust in occupational activities, mainly diffuse fibrosis of the lungs. To confirm the diagnosis of the disease, active consultation is required, and physicians can make comprehensive analysis through the patient’s workplace, symptomatic manifestations, and imaging examinations, etc. Common auxiliary examinations include X-ray chest radiographs and CT of the lungs. People who have been engaged in long-term work with a history of exposure to productive mineral dust, such as mining all kinds of metal or non-metallic mines, coal mines, etc., or casting, sand cleaning and other types of work in the machinery manufacturing industry, are at risk of getting pneumoconiosis. In the early stage of pneumoconiosis, there are mostly no obvious symptoms. The earliest symptoms that patients may experience are dyspnea, which is characterized by shortness of breath after activity and decreased exercise tolerance. With the development of the disease, patients may cough and cough up sputum, mostly mucus sputum or black sputum, which gradually worsens and increases. In addition, patients may be accompanied by chest pain, hemoptysis and other symptoms. X-ray chest examination is an important means to diagnose pneumoconiosis. The chest film of the patient may show small round or irregular shadows, and the CT of the lungs may show some mass-like strong echogenic shadows. Patients who suspect pneumoconiosis should be diagnosed under the guidance of doctors and should not blindly make judgment on their own in order to avoid delaying their condition.