Abstract: The research choose 600 AA broilers which were randomly divided into two groups, each group repeat three times. experiment groups were fed traditional Chinese medicine group and control group were fed basal diet with 20 days. The result show: traditional Chinese medicine additive can improve growth performance of broilers in high temperuture. Experiment groups were more quiet than control groups especially in last week. Average daily gain in experiment groups can improve 8.1% than control groups（P<0.05),and feed/meat ratio in experiment group reduce 7.34% than control groups（P<0.05）.But average daily feed intake is appreciably more high in experiment groups than in control groups. In a word , traditional Chinese medicine additive can improve growth performance of broilers and reduce feed/meat ratio.

Key words: AA broilers; growth performance; traditional Chinese medicine additive