Abstract: The microstructure characteristics observed and analyzed between three super hybrid rice combinations: P88S/0293、Ⅱyou ming 86、Liang you pei jiu , using 3-line hybrid rice - Shanyou 63 and conventional rice - Xiangzhou 8 as the check by paraffin method in the heading stage. The results show that the number of vascular bundles of the three super hybrid rice combinations excess the number of Shanyou 63 and Xiangzhou 8 and phloem area/ vascular bundles area(Pl/Vb) of three super hybrid rice combinations is obviously higher to that of check The microstructure construction of the super hybrid rice is propitious to the transportation of the photosynthesis production. At the same time, the microstructure characteristics of the three super hybrid rice combinations belong to the characteristics of the C3 plant, they had advantages to transportation of the photosynthesis production in some microstructure characteristics