Abstract: Aiming at the practical problems that the methods for traditional plant type breeding could not meet the requirements of quantitative design of plant type, based on growth functions and shape modeling theory, a controllable modeling thoughtway was put forward according to the plant organ horizontal and vertical variation laws. Based on this thoughtway, the method for quantitative design of plant type was investigated. In combination with high photosynthetic efficiency, the visualization digital platform for design of plant type was built. Different crop plant types were quantitatively designed for various areas with different environmental characteristics, which laid a sound foundation for optimizing field cultivation and management of crop plants.