The invention discloses a network abnormality detection method, after receiving the network flow data of target network, the corresponding target network abnormality detection program is identified from a plurality of network abnormality detection programs, then the abnormal detection of target network is carried out, and the abnormality detection result of target network is obtained. In the casethat the abnormality detection of target network is carried out, a plurality of network abnormality detection methods are available, a plurality of abnormality detection methods of target network corresponding to network flow data can be identified, detection on target network through a plurality of abnormality detection methods can avoid the issue of low reliability of single network abnormalitydetection method used for detecting the abnormality of IP bearer network, and thus the influence on normal operation of the IP bearer network is avoided. In addition, the invention also discloses a network abnormality detector, equipment, storage media, and the effects are as mentioned above.