The hazards of argon arc welding on the body include: high-frequency electromagnetic field hazards, ozone and oxygen-nitrogen compounds hazards, localized injuries and so on. 1. In the process of using argon arc welding, may produce a certain high-frequency electromagnetic field, if the patient’s long-term frequent contact with argon arc welding high-frequency electromagnetic field, may lead to the patient’s skin damage. 2. In the argon arc welding welding, may release ozone and oxygen-nitrogen compounds, may also produce radioactive gases or particulate matter, may cause some damage to the respiratory mucosa and lung tissue. 3. In the process of welding, electric sparks cause direct damage to the eyes, face and other body parts, which may cause arc burns, electro-optic ophthalmia and other various diseases.