The performance of fine-sucking seed was controlled by the combination mode of the vacuum cylinder (VC) and the vibrating seed plate (VSP) in the precision seedling planting parts for super hybrid rice. The ebullience and vibration of the seed close to VC in VSP were highly correlated with vibration parameters. The sucking-seed capability of VC was measured on conditions of the different seeds thickness and the installation position of vibrator, respectively. In addition, the vibration characteristic of VSP was studied. The results showed that the optimal performance is obtained when the air-style vibrator is at the rear of VSP, and the regular capability of fine-sucking seed depends on the given seeds thickness close to VC and the vibrator’s frequency in harmony. The prime performance comes to 93.118% when the optimum seeds thickness 0.7cm and frequency of vibration 98Hz.