Abstract: To determine the environmental safety of cyflumetofen applied at picking times of strawberry， the residue test and risk assessment were conducted. Based on the field experiment， a positive correlation was found in pesticide residues between harvested fruits and treatment of pesticide in field， when they were applied one time at the recommended dosage and 15 times of dosage under greenhouse conditions. The highest residue among the different treatments herein is 05882 mg·kg-1， with a half\|life of 9364 d. Risk quotient showed that the risk of cyflumetofen for the people aged of 2－4， 18－30 and 60－70 were very low with in 21 d PHI （the risk quotient rane was 0001－0020）. Maximum residue limited at 2 mg·kg-1 and PHI at 7 d were recommended for cyflumetofen applied in strawberry. PHI should be prolonged 1-2 days in the continual harvesting mode， and it should be also appropriately prolonged with the raising pesticide concentration.

Key words: strawberry, red spider, cyflumetofen, degradation dynamic, risk assessment, risk quotient