560 g/L Azoxystrobin Chlorothalonil SC is a new fungicide against Peronophthora litchi.During 2005 and 2006,the result of effect tests in field showed that 560 g/L Azoxystrobin Chlorothalonil SC used at 1∶1 000,1∶800 and 1∶600 for 3 times gave a control effect of 71.65% to 83.50% in the colour-changing period of fruit,74.54% to 88.98% in the mature period and 77.01% to 90.54% in the storage period of fruit,significantly better than the control effect of 80% Da sheng WP used at 1∶600.560 g/L Azoxystrobin Chlorothalonil SC has been registered in the Peronophthora litchii,and it is suggested to be applied in the litchi production in Guangdong and other adjacent provinces.