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The morphological characters of the newly released super hybrid rice in South China, Yueza122, Fengyou428, Peiza 67, and super conventional varieties, Guangchao3, Shengtail at the active tillering stage in both early and late crops were investigated. Using the analysis of variance and other statistic methods, the ideal morphological characteristics of South China double cropping super-rice at the active tillering stage were determined. They are 55-60 cm in the early crop and 60-76 cm in the late crop for the ideal plant height, about 15 tillers in the early crop and 14-19 tillers in the late crop for the ideal tiller number per plant, 40-44 cm in the early crop and 42-60 cm in the late crop for the ideal length of the first leaf under the top leaf, 1.2-1.4 cm in the early crop and 1.2-1.3cm in the late crop for the ideal width of the first leaf under the top leaf, 3944 cm in the early crop and 37-43cm in the late crop for the ideal length of the second leaf under the top leaf, 1.1-1.4cm in the early crop and about 1.1cm in the late crop for the ideal width of the second leaf under the top leaf, 22-58° in the early crop and 4 12° in the late crop for the ideal top leaf angle at the active tillering stage. Based on these results, a new concept of dynamic plant type structure for South China double cropping super rice breeding was suggested.