A   model for simulating  leaf inclination angle distribution   was established by the plant type factors of three plant types，and validated by the present experiment. The coefficient of determination (R2) and the root mean square error （RMSE）between the simulated and measured values are 0.9472 and 3.93%, respectively.  The simulation results of the model  showed that  there was different distribution of leaf inclination angle in the  three plant types. The leaf inclination angle of compact plant type, Liangyoupeijiu  (erect leaves)  is larger than a loose plant type, Shanyou 63 (droopy leaves) and intermediate type, Liangyou Y06.  Shanyou 63 showed the lowest inclination angle of leaf which is consistent with  the observation. For a   variety, there was also different leaf inclination angle distribution at  the seven growth stages. Canopy leaf inclination angle became  larger and larger from transplanting to booting stage. After booting, with the advance of growing, leaf inclination angle of Shanyou 63 and Liangyou Y06 was getting larger, while Liangyoupeijiu showed little change. Canopy leaf inclination angle distribution at six heights showed different for a material  at a   growth stage. With the increase of canopy height, layered leaf area index decreased in the three plant types, and the leaf inclination angle of Liangyoupeijiu showed little change. However, with the increase of canopy height, leaf inclination angle was getting larger for Shanyou 63, and much smaller for Liangyou Y06. The present model proved that simulation results of the model come very close to the actual values.