In order to prevent accidents during the hoisting operation of cranes, a safety control monitoring system has been developed. The system uses an intelligent image recognition technology to monitor dangerous areas during operation, which includes range setting, monitoring objects (events) within the range, and subsequent triggering of message pushes, alarms, system alerts, and so forth. The technology is expected to be further promoted and applied to the monitoring of various dangerous areas on construction sites, such as windows, elevator openings, shafts, stairwells, etc., as well as areas where the risk of falling may occur during labor operations.