The invention discloses a diagnosis method based on an enterprise inbound personnel smoking danger level, and belongs to the technical field of petrochemical enterprise safety production supervision.The method comprises the following steps: firstly, arranging an inbound personnel total time recording module, a first inbound personnel in-smoking-room time recording module, a same inbound personneli-th time in-smoking-room time recording module and an inbound personnel risk grading module in a computer; the enterprise inbound personnel wearing the positioning chest card, obtains the geographicposition of the enterprise inbound personnel by using the positioning chest card, substitutes the monitored data into a set formula for calculation, and then evaluates the enterprise inbound person in combination with a risk level module. The diagnosis method provided by the invention can carry out key monitoring on incoming and outgoing personnel, and improves the target of preventing and controlling external fires of enterprises. According to the method, enterprise inbound personnel can be managed conveniently, the method combines client user analysis results, relevant work tasks can be issued to specific executors for implementation through management improvement and generation of relevant tasks, and management is convenient.