The present invention can prevent a safety accident of a construction worker in a construction site by measuring the physical condition of a construction worker in real time, and can prevent a construction worker using construction of a physical information Workers safety and productivity management system.The body measuring member 200 is provided on the wearer's body 100 to measure the physical condition of the construction worker. The body member 200 is provided on the body member 200, A safety management device 300 for informing and managing the physical condition and attitude of a construction worker measured in the workplace, providing the managed body information and the attendance information to the outside, receiving an alarm signal from the outside and alerting the construction worker, And a construction worker management server 400 for recognizing the health condition of the construction worker based on the body information provided by the management apparatus 300 and providing an alarm signal to the safety management apparatus 300 when the health state is determined to be abnormal do.;
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