A wireless water regimen detecting device includes a fish finder module, a data communication module connected to the fish finder module and a WIFI module connected to the data communication module, which are arranged within a housing. The wireless water regimen detecting device utilizes the wireless communication way of WIFI to make the display terminal of the fish finder module not be limited to the wireless receiving terminal which is especially prepared for it, but can use existing intelligent terminals with a WIFI wireless communication function, such as smart phone, tablet PC, notebook computer or other portable mobile devices, to display. Sweb operating mode of monopoly serial communication port can be utilized, thus the user can carry on related operation on the webpage of the display terminal by visiting the web server to obtain detecting information of the fish finder module. Much convenience is provided to the user.
