When painting without protection, the concentration of benzene in the air of workplace is quite high, which is very harmful to painting workers. Long-term exposure to benzene will cause chronic poisoning, leading to diseases such as leukopenia, thrombocytopenia and bone marrow hematopoietic dysfunction. The harm of paint to human body can be not only inhaled through lungs, but also absorbed through skin. Human skin can directly contact with paint, which can dissolve the fat in the skin, leading to skin cracking and inflammation at the same time. Automobile painting is one of the important contents of automobile beauty. Workers will inevitably come into contact with' benzene' at work, so they must be well protected and the working time should not exceed 30 minutes. If the human body ingests too much benzene, aplastic anemia and leukemia will occur. Therefore, the protective configuration must be prepared when painting, the working hours should be limited, and the workplace should have good ventilation conditions.