With the development of industrialization, nowadays environmental pollution is also more and more serious, which will directly affect our health. If a person stays in a place with bad environment for a long time, he will suffer from a disease called pneumoconiosis, which is mostly caused by inhaling dust for a long time, so how can we tell it is pneumoconiosis? First of all, we can start from the working environment, and then combine the chest X-ray to judge the patient’s condition, and also combine the patient’s performance and examination results to exclude other diseases. At present, we can classify pneumoconiosis into three phases according to the chest X-ray: small shadows with a general density of grade 1 and a range of 2 lung areas are designated as first-degree pneumoconiosis; small shadows with a general density of grade 2 or 3, and a range of more than 4 lung areas are classified as second-degree; small shadows with a length of more than 20 mm and a shortness of more than 10 mm are classified as second-degree. 20 millimeters and shorter than 10 millimeters are classified as Grade 3 pneumoconiosis; the presence of large shadows or; the presence of large shadows on top of Grade 2 are classified as Grade 3 pneumoconiosis. The classification of pneumoconiosis is based on the name and severity of the specific pneumoconiosis, and the classification of pneumoconiosis is mainly as follows: 1. Silicosis: it is mainly concentrated in the mining industry, building materials industry, stone processing, ceramic industry, etc. The work of this group of people involves long-term inhalation of silica dust, which leads to the symptoms of chest tightness, coughing with blood, and hoarseness of voice, which represents the emergence of diffuse pulmonary fibrosis. 2.Coal worker’s pneumoconiosis: mainly concentrated in the coal industry, work inhalation of long-term exposure of coal dust and quartz dust, will suffer from coal worker’s pneumoconiosis, this disease will only have cough, cough sputum and other obvious symptoms. 3, graphite pneumoconiosis: mainly concentrated in electric power, iron and steel, daily-use chemical dyes and other industries that use graphite, patients with long-term inhalation of high concentration of graphite will lead to graphite pneumoconiosis. Dryness of the mouth, nose and throat, coughing, and severe impairment of lung function will occur. 4, carbon black pneumoconiosis: carbon black is a material that can be used to decompose heat, patients inhale too much dust in the production process of carbon black will cause carbon black pneumoconiosis, shortness of breath, chest pain and other symptoms, and it is a slow progression of the disease, without too obvious clinical symptoms. In the long-term exposure to dust environment, with will bring a lot of diseases, pneumoconiosis is still only one of them, so, long-term exposure to dust operators, in order to ensure their own health, must be on time medical examination, to avoid bringing harm to themselves or their families.