Translational marine wiper is a new type of electrical product used to wipe the porthole of ship's cab. It takes the driving motor as the power source, drives the rubber wiper blade installed at the lower end of the wiper rod through the deceleration and transmission mechanism, and makes a parallel scraping test on the porthole glass with the shell as the guide rail, so as to keep the porthole smooth when waves and rain beat and snowflakes flutter. This product is equipped with a heater.