The invention discloses a child smart watch, which comprises a dial and watchbands movably connected with the dial. The watchbands comprise a left watchband and a right watchband, a plurality of through holes are uniformly formed in the left watchband, a limiting piece is connected to the left watchband, and a fixing piece is arranged on the right watchband; and a positioning module, a transmission module, a voice prompt module, an emergency rescue module and a sensor module are arranged in the dial plate. According to the child smart watch, the position information of a child can be provided,voice prompt or emergency call making can be performed according to the dangerous condition of the child, and the motion state of the child can be detected in real time so that the probability of danger of the child can be reduced.