The utility model discloses a magnetically-sealed toilet, which comprises a toilet bowl (1), a water tank (2), a float (3) and a water control valve (4) which are connected with each and arranged inside the water tank (2), a water outlet (2) arranged on the water tank (2) and connected with a water outlet (9) of the toilet bowl (1), a discharge port (5) arranged in the toilet bowl (1) and provided thereon with a magnetic seal plate (6) in a way that the upper end is hinged with a bowl body (16) of the toilet bowl (1), a connection arm (7) which is arranged inside the water tank (2) and has a front end connected with the float (3) and a rear end hinged with a bottom plate (17) of the water tank (2), a magnet (8) arranged in each of the upper and lower parts of the magnetic seal plate (6), a magnet (8') arranged inside the bowl body (16) beneath the discharge port (5), and a magnet (8'') arranged at the front end of the connection arm (7). When the connection arm (7) is placed horizontally, the magnet (8'') on the connection arm (7) is positioned above the magnet (8) in the upper part of the magnetic seal plate (6). With the application of magnetic seal plate, the utility model acts like an S-shaped water seal to prevent stinking smell and mouse invasion.