Office with the VB family was inextricably linked, Microsoft Office components of all applications are built VBA, so you can operate through VB or VBA in the Word application object, with exhaustive testing to find the way to achieve The purpose of the password is lost. This article discusses how to use the VB programming, through the exhaustive method to lift WORD document password. And break the interruption of the process of adding the convenience of users at any time to break the process of disruption. Word provides a wide range of methods to limit access to user documentation, in order to avoid unauthorized persons to view and change. However, in today's information-based, users need to remember too many passwords, once the password is lost, users will not be able to open or access the documents, to be very costly to the user. Whether the use of computer code to solve the high-speed operation, in the case of Word encryption algorithm, using the exhaustive method to try to decrypt the document is decrypted only option. In the actual design process, I designed to facilitate the task is to find lost password of the user password, Lost password has been resolved the loss and inconvenience caused. Keywords: exhaustive method, decryption, WORD document, password