A method and a system for verifying quality of server thereof are provided. The method and the system are used for verifying a plurality of servers constructed in a server cluster. The method includes: installing a cloud computing platform in the servers, creating an input file folder on a cloud computing platform file system included in the cloud computing platform and storing calculation data into the input file folder. The method further includes: creating a plurality of mapreduce tasks corresponding to a calculation job by the servers and distributively executing the mapreduce tasks by using a mapreduce frame included in the cloud computing platform to obtain a plurality of calculation results, and storing and analyzing the calculation results to verify a quality of each of the servers. Accordingly, the method is capable of conformably verifying quality of servers in the server cluster.