An example method of security prejudgment based on characteristic information include receiving characteristic information of a monitored party from the monitored party, calculating security status information of the monitored party based on a probability of danger that has been stored and corresponds to the characteristic information of the monitored party, determining that the security status information is greater than a first threshold, performing an appropriate operation based on the determination. Accordingly, the technical solution of the present disclosure solves a problem that presetting of monitoring conditions cannot cover potential surrounding risks that result in a safety hazard. Further, the technical solution can monitor risks that are not reflected by spatial information. After identifying and warning based on the characteristic information, potential risks may be avoided before occurring without wasting data traffic.