Abstract: Field control efficiency of six kinds of newly insecticides on rice leafroller, Cnaphalocrocis medinalis of single-season rice were evaluated in the paper. The results showed that on the 5th day after spraying, control efficiency of 5% methylamino abamectin benzoate 11.25 g (a. i /hm2), 10% avermectins ? flubendiamide 60 mL (a. i /hm2) and 24% metaflumizone 216 mL (a. i /hm2) on C. medinalis were more than 95%, 32% profenofos ? hexaflumuron 288 mL (a. i /hm2), 20% chlorantraniliprole 30 mL (a. i /hm2) and 14.5% methylamino abamectin benzoate ?chlorpyrifos 211.5 mL (a. i /hm2) were 73.5%~83.1%. On the 12th day after spraying, control effects of profenofos ? hexaflumuron and metaflumizone were 74.1%~82.7%, avermectins ? flubendiamide and chlorantraniliprole were 62.9%~65.6%, methylamino abamectin benzoate and methylamino abamectin benzoate ? chlorpyrifos were less than 50%. On the 31st day, except control effect of profenofos ? hexaflumuron and chlorantraniliprole still had about 40%, other insecticides had no control efficacy. Leaf-protecting effects of metaflumizone, chlorantraniliprole, avermectins ? flubendiamide were 68.5%~78% for 5 to 12 days after spraying, and were significantly high than those of methylamino abamectin benzoate, profenofos ? hexaflumuron and methylamino abamectin benzoate ? chlorpyrifos （53.3%~69.9%）. On the 31st day, leaf-protecting effect of methylamino abamectin benzoate and methylamino abamectin benzoate ? chlorpyrifos were lower than 26%, and other insecticides still had 45%~62%.