The invention belongs to the field of swimming equipment, and particularly relates to an anti-fog swimming goggles, which comprise a mirror frame, wherein a binding band is fixedly connected to the mirror frame, a lens is arranged in the mirror frame, a sealing cover is fixedly connected to the rear side wall of the mirror frame, an annular cavity parallel to the lens is arranged in the mirror frame, a water inlet is arranged at the upper end of the annular cavity, a water outlet is arranged at the lower end of the annular cavity, two sides of the annular cavity are respectively provided witha water blocking plate, the water blocking plate is rotationally connected with the rear side wall of the annular cavity through a rotating shaft, the other end of the rotating shaft penetrates through the mirror frame and is rotatably in sealing connection with the mirror frame, a scraping strip used for scraping off the water mist on the lenses, is fixedly connected with one end the rotating shaft which is position outside the annular cavity. A receiving groove for receiving the scraping strip is arranged on the inner top surface of the mirror frame; the upper side wall of the water blockingplate is fixedly connected with an elastic bellow; a through hole connected with the outside is arranged on the rear side wall of the annular cavity. According to the anti-fog swimming goggles, the water flow is utilized to drive the scraping strip to scrape off the water mist on the lenses, and the temperature difference inside and outside the lenses can be controlled through the annular heat conducting sheet, so that the fogging condition is reduced.