The invention discloses a floor drain for a bathroom. The floor drain comprises a body, wherein multiple drainage through holes are formed in the sealed end of the body and radiate outwards in the radial direction from the center of the sealed end of the body; an annular groove is formed in the side wall of the body; an annular baffle is hinged in the annular groove; one end of a spring is connected with the side wall of the annular groove, and the other end of the spring is connected with the bottom of the baffle; the baffle completely covers the multiple drainage through holes by being supported by the spring. After water flows into the drainage through holes, pressure is applied to the baffle below the drainage through holes under the action of the initial momentum and the gravity of water, so that the baffle moves downwards, the spring is compressed, the baffle is changed from a horizontal state to an oblique state, water quickly flows into a drainage cavity along the oblique surface, and accumulated water is quickly drained.