At present, in order to seize the market for new models of automobile companies, the construction period of new automobile factories is gradually shortened. Company A realized mass production SOP from infrastructure piling in the main engine plant to 12 months for model, the painting workshop is the key process and the difficulty of construction safety management. By clarifying the safety responsibility system of each profession in the workshop, formulating the management system of site construction safety operation, identifying the source of safety hazards and preventive measures in the workshop, ranking the construction according to the short period of construction, avoiding the risk of cross construction, formulating safety assessment rules for site construction units, so as to achieve four no injuries in site construction and finally achieving zero safety accidents in site construction.