A power device and an operating method thereof are provided. The power device comprises a communication interface and a control circuit. The control circuit is configured to connect a network through the communication interface, and to execute a web server program to provide a web-based user interface. The web-based user interface is configured to provide a plurality of web pages, and the web pages are configured to present a plurality of different related information of the power device. The web-based user interface is further configured to provide a virtual button. When the control circuit determines that the virtual button is clicked once, the control circuit collects the related information from different addresses corresponding to the related information in a memory space, and packages the collected related information as a single file, so as to perform a follow-up process on this single file.