Safety monitoring method and system for building construction

The invention relates to the technical field of construction safety monitoring, and particularly discloses a safety monitoring method and system for building construction, and the method comprises the following steps: S1, obtaining historical monitoring data; the historical monitoring data are historical monitoring images obtained in real time every day; s2, the average times and the average duration when the worker does not wear the safety helmet every day under different average temperature intervals are obtained, and a change curve is obtained; s3, obtaining the average duration of the worker not wearing the safety helmet in each time period under different average temperature intervals, and generating a distribution curve; s4, acquiring the current times, the current total time length, the current time length and the current average time length when the worker does not wear the safety helmet in the monitoring image; the average temperature of the day is obtained, and a corresponding distribution curve and