The invention discloses a method and a system for determining a cable state by using cable line mobile inspection data. The method includes: receiving cable line moving inspection data preprocessed bythe cable line mobile inspection device; and dividing the cable line movement inspection data into multiple clusters according to a preset division rule by using a distributed data processing methoddesigned by Map Reduce, adoptingThe K-means clustering algorithm to cluster the cable line moving inspection data in each cluster; calculating the centroid of each cluster according to the result of the clustering process, and determining the identification framework of the cable state; The data attribute of the cable line moving inspection data in the cluster; determining the basic credibility distribution function BPA of the centroid of each cluster according to the data attribute of the cable line moving inspection data in each cluster; the centroid of each cluster; performing the weight calculation and then fuses, and useing the fusion result to determine the cable state based on the identification framework of the cable state by The basic credibility distribution function BPA.