The invention provides an intelligent toothbrush with a voice prompting function. The intelligent toothbrush comprises a toothbrush head, a toothbrush handle, a sensor and a switch, wherein the tooth-brushing time sensor is arranged on the toothbrush handle, and has the effect of a loudspeaker, the switch is arranged on the toothbrush handle, and the sensor is connected with the switch through a circuit. When starting to brush the teeth, a user presses down the switch, the sensor begins to play the music or voice segments, and records the tooth-brushing duration, if the tooth-brushing duration is not as long as the set duration and the tooth-brushing action stops, the sensor sends out the set voice prompt for reminding the master to prolong the tooth-brushing duration, and thus a very good health effect is achieved.