Abstract:A total of 464 crop varieties were registered and released from 1984 to 2006, including food crop, oil crop, fibre crop, vegetable crop, melon fruits, and edible fungus. In this paper, the species diversity and traits variation of these varieties were analyzed, and the diversity and breeding achievements were described using rice as an example. The effect of yield components in increasing yield potential was discussed. The database sharing system was also described.