Abstract: The systematic thinking model in safety management is to effectively unify occupational safety and process safety together from a higher level, analyze and solve problems systematically. It uses the internal control system of the enterprise as the carrier to integrate various systems and link all the elements together, and uses one system to achieve the integrity, systematicness and unity of management, thereby achieving full coverage of risk management. It can solve the problem of multiple management systems running simultaneously in an enterprise, leading to confusion, overlap, and disorder. Based on the analysis method of safety barrier theory, systematic thinking can be used to find the lack of control, which can avoid the recurrence of accidents effectively.

Key words: systematic thinking, safety barrier, occupational safety, process safety