Abstract: To improve the germination rate and growth of rice, home-made 2% tebuconazole biological complex seed-coating agent (BCSA) was used with different doses for coating rice seeds, 4 seed-coating agents, 39% matalaxyl-M azoxystrobin, 600 g/L imidacloprid, 10.6% tebuconazole thiram and 35% thiamethoxam were used with the ratios of the agent to seed weight, 1:250, 1:250, 1:60 and 1:500, respectively, as chemical controls. The results showed that the optimal doses for BCSA were related to germination temperature, namely the higher temperature was, the lower BCSA dose and vice versa between 20-30℃. At 20℃, the germination rate of rice seeds coated with BCSA and the 4 agents were 5.77%, 0.38%, 1.53%, -0.39% and 3.84% higher than that of the naked seed control (NSC). The root of seedlings from BSCA-coated seeds were 91.85%, 154.37%, 186.85%, 118.09% and 67.19% longer, the sprout of those were 52.43%, 93.81%, 103.50%, 50.74% and 38.44% longer than those of the four chemicals and NSC, respectively. The best ratio of BCSA to seeds was 1:50 when rice was seeded in mud. The emergency rate, fresh weights of aerial and underground parts of the seedlings were 7.58%, 18.96% and 15.07% higher than those of NSC at 35 day after seeding.