Safety check system and safety check method used for common occasions

The invention discloses a safety check system used for common occasions, comprising a tera-hertz imaging system, a tera-hertz imaging data acquisition system and a central intelligence control system. The central intelligence control system is used for analyzing and processing the information of a detected person in a detection area; the tera-hertz imaging system comprises a tera-hertz source, a tera-hertz detector and a signal modulator, wherein the tera-hertz source emits tera-hertz waves to completely scan the person in the detection area, the signal modulator processes electromagnetic waves received by the tera-hertz detector, and the tera-hertz detector sends the processed electromagnetic waves to the tera-hertz imaging data acquisition system; the tera-hertz imaging data acquisition system transmits the collected information to the central intelligence control system in real time; the central intelligence control system performs database analysis and analysis determination on the received information, and displays the image of the detected person. The safety check system has a fast safety check speed, allows the detected person to walk normally, and realizes non-contact detection and intelligent control in whole safety check process.