The invention discloses a third-party module software on-line management method which comprises the following steps that first, whether an updating file of third-party module software corresponds to a hardware mark of a single disc which needs updating is checked, if yes, the second step is carried out, and otherwise, updating is not carried out; second, the file description of a target file is obtained; third, the target file is subjected to integrity checking, if the fact that the target file is not complete is found, updating is not carried out, and errors are reported to a web master; otherwise, the fourth step is carried out; fourth, according to the comparing result of information of two versions, whether updating is allowed is judged, if the version of the target file is older than the version of a current file, updating is not carried out, and otherwise, the fifth step is carried out; and fifth, the target file is downloaded, installed and updated. According to the method, a semi-automatic measure is used, on-line management of the third-party module software is achieved, manpower and material resources are saved, and software maintaining efficiency is improved.