Impact-resistant passive protective net

The invention relates to the technical field of safety monitoring, and particularly discloses an anti-impact passive protective net which comprises a protective net body and further comprises a server, a processing module, an alarm module and a tension sensor arranged on the protective net body. The server is used for dividing the protective net body into a plurality of protective areas along a route, the tension sensors on the protective net body in the same protective area are in one group, and one group of tension sensors correspond to one processing module and one alarm module; the processing module is used for receiving the monitoring signals returned by the same group of tension sensors, processing the monitoring signals to obtain tension data and returning the tension data to the server, and the server is further used for judging whether the protective net is damaged or not according to the tension data, generating a first alarm instruction if the protective net is damaged and sending the first alarm i