Disclosed are a log parsing method and device, a server and a storage medium, relating to the field of network operation and maintenance. The method includes: acquiring (101) sample log data; performing (102) clustering processing on the sample log data according to the length of each sample log in the sample log data, and beginning and ending keywords of each sample log in the sample log data, to obtain a plurality of log clusters; determining (103) a quality score of each log cluster of the plurality of log clusters obtained by the clustering processing; and parsing (104) a log according to the plurality of log clusters and quality scores of the plurality of log clusters.