Abstract: Bacillus amyloliquefaciens B9601-Y2，a growth promotion rhizospheric bacterial strain,was used for the first time as a main ingredient to develop a compound seed-coating agent with imidacloprid and carbendazim for canola.The results showed that the pelleting seed-coating agent (PSCA) could promote the growth of canola and control aphids better than the filming agent.The No.2 PSCA was the best of 6 agents based on all the tests in lab, greenhouse and field.It showed no effect on germination potential, but significantly increased the germination rate (GR) of canola seed by 11.64% in lab, 11.0% in greenhouse; in field experiments, seedling height and fresh weight of canola were respectively 14.97% and 9.46% higher than that of the control group.After being planted for 80 and 90 days,canola from the coated seeds showed control efficiency on aphids by 92.0% and 88.2%,which was 4.43% and 7.56% higher than the agent without B9601-Y2.The strains in No.2 PSCA could remain highly active by forming 105cfu per seed in 6-month storage.