Abstract:Rice is the leading crop in the world. To increase the yield of the rice is the main purpose for rice scientists. In the past decades, the success achieved in the development of hybrid rice was a technological innovation in rice production. But it has been carried out at the diploid level only. We try to utilize polyploidy, heterosis and biotechnology to exploit a new approach for super rice breeding. Up to now, a number of autotetraploid rice lines have been induced. Furthermore, restorer lines, male sterile lines and their maintainers of autotetraploid rice have been selected. It is the first time in the world that autotetraploid three parental lines were developed in rice. New hybrid combinations with potential of higher yield have been made. A new technology of system was made which has merit of heterosis and polyploidy.