In order to explore the effects of different plant height, center of gravity height and basal stem traits on lodging resistance of rice, In this study, 533 core rice germplasms were used as experimental materials, and 10 traits were analyzed by correlation and path analysis under two cultivation modes of pot culture and field culture.The results show that the first internode wall thickness and basal stem breaking-resistant strength of the low-plant rice have synergy on the lodging index.The improvement of lodging resistance traits of low-plant rice should focus on the first internode stem thickness and wall thickness. The lodging of high-plant rice is more affected by plant height and height of centre of gravity and the improvement of lodging resistance should be concentrated in the second internode stem thickness.The improvement of lodging resistance of rice germplasm with different plant heights can be achieved by enhancing the bending strength of the base. This study would provide an important reference for the improvement of lodging resistance in different rice plants.