Abstract: The experiment studied the effects of fetal music on the fetus from three aspects, the results indicate: Fetal music can extend the moving time of the fetus, it testified that the conditioned reflex was in the later period of the fetus. After birth the newborn child can recognize the fetal music, this explains that the hearing- memory was in the later period of the fetus; sex difference and activity types of the newes are the two important factors that influence the reaction of the fetus to music. The significance of the experiment testified that the mental phenomenon was in the period of the fetus. It also introduced the long historical debate whether mental phenomenon was or was not in the period of the fetus into the experimental process of psychlolgy.

Key words: fetal music, fetus, conditioned reflex, hearing-memory, moving of fetus