trifoliate，LC）. The trees on GS had the highest yield per crown size. The largest fruit in weight and size were gotten from trees on GS. However，fruit from the plants on CT and LC and rootstocks were the largest in number per tree，and fruit from trees on Rangpur Lime（C. limonia Osbeck，RL）had the largest juice content. The largest content of total acids in juice were gotten from the fruit on LC rootstock，the largest content of vitamin C from that on LC and RL rootstocks，and the largest of juice Brix content from that on LC and CT. The largest in T/A（Brix︰acid ratio）fruits from trees on Sunchusha Tangerine（C. reticulata Sunchusa，SM），GT，GS and CT. Whilst，fruit from trees on GT had the largest degree of oleocellosis. Overall，rootstock affected fruit size and weight，juice content，Brix，total acids and Brix︰acid ratio，results so for showed that CT and LC were the most promising rootstocks for Hamlin sweet orange in south China.