Rice is one of the most important food crops. The plant type of rice is closely related to the yield of rice. Plant height, as an important factor of plant type, has been widely concerned and studied. The molecular mechanism of rice plant height regulation has been systematically studied since semi-dwarfing breeding, the first Green Revolution in rice, providing a good basis for precision molecular breeding. Many plant hormones participate in the control of plant height of rice, such as gibberellin (GA), auxin and cytoki-nin, and GA signaling pathway is the most important. Herein, the research progress of GA signaling pathway in regulating plant height in rice was reviewed, including synthesis and metabolism of GA, signal transduc-tion of GA, and its synergistic effect with other plant hormones, and the main direction for further studying regulation mechanism of rice plant height was also introduced, which may be helpful for related basic re-search and crop genetic improvement.