The core technology of electric cradle is intelligent controller. At present, well-known brands such as John Rabbit, William Rabbit, Lebeier, Henry Rabbit and Baobao Shuang, which produce electric cradles in China, are in a leading position in technology. The controller technology of electric cradle has been upgraded and improved for several generations. The new generation controller not only has the function of accurately controlling the swing, but also improves the auxiliary functions of raising the baby, such as music sleep, early education guidance, body temperature warning, kicking and being warned. In order to better protect the baby's health, the latest well-known electric cradle has added negative ion health technology and environmental protection technology on the basis of the original electric cradle core technology, which not only ensures the baby's comfort, but also protects the family's health.