A method for offline servicing of a field device (FD) of automation technology by means of a service unit (SU), wherein a web server is associated with the field device (FD) and a web browser is associated with the service unit (SU), wherein the method has the following steps: the service unit (SU) connects via the web browser with the web server of the field device (FD) to be serviced; a control logic (CL) made available by the web server is loaded into the web browser; the control logic (CL) starts the download of offline web pages, which are present in the web server or are produced by it, and loads the web pages and the configuration data of the field device (FD) into the service unit (SU); and the current configuration data are, with involvement of the web pages and the loaded configuration data, edited or created offline in the service unit (SU).