Embodiments of the present invention provide a method and an apparatus for word detection in an application program. The method includes extracting a resource file from a multilingual application program installation package and converting the resource file into a text file. The method further includes disassembling the text file according to a language version to acquire a corresponding language text file; invoking a language detection tool according to the language version; and checking the language text file by using the language detection tool to identify questionable character information. The apparatus for word detection includes a file processing module, configured to extract a resource file from a multilingual application program installation package, and convert the resource file into a text file; and a disassembling module, configured to disassemble the text file according to a language version to acquire a corresponding language text file. The apparatus further includes a tool invoking module, configured to invoke a language detection tool according to the language version; and a text detection module, configured to check the language text file by using the language detection tool to identify questionable character information. Word detection efficiency in an application program can be improved by adopting the present disclosure.