According to the thoughtway of the research of breeding super hybrid rice,4 varieties 20 facrors related to plant morphology are detected and their correlations are analyed for Liangyoupeijiu(PeiAi64s/9311),65396,9311,E32,SanYou63,Peiai64s and 399-seven varieties with differnt plant morphologies.We believ that plant height and leaf angle are two most important factors in breeding and culitivating varieties with supper high yield.Analyzing the relation between eco-condition and Liangyoupeijiu’s plant height shows that 12.6 percent of the height is resulted from temperature,and the ecological prediction model of plant height developed.The theoretical simulation calculation fo the sunlight per unit area recieved by top three leaves at 8 leaf angle after heading confirms that the optimal plant morpholog should be that the distances from the flag leaf to top second leaf and from the top second leaf the third top leaf are 15 cm and 25cm,respectively,the flag leaf angle is between 4° and 6°,the top second leaf angle upper is between 9° and 11°,the top third leaf angle is between 14° and 16°.The above results may provide ascientific basis for breeding in plant morphology of super hybird rice.