Abstract: The paper studied on the test of survival of fruit fly and experiment of Anti-oxidant of mouse with procyanidin from lotus leaf as functional facts. The test of survival of fruit fly showed that average life of two dose group of female group in 0. 60% and 0.20% and male group whose dose was 0.60% was longer than comparison group markedness. The average life of three dose group in 0.022%, 0.20% and 0.60% of female was longer than comparison group remarkable respectively. The average life of two dose group in 0.60% and 0.20% of male was longer than comparison group markedness too. Half death time of two dose in 0.60% and 0.20% of female and male was longer than comparison group remarkable. The results of experiment of rat anti-oxidant showed that MDA content of high dose group was lower than senile comparison group. The MDA content of middle and low dose group was lower than senile comparison group. The activity of SOD in middle and low dose group was higher than senile comparison group remarkednees. All experiments showed that the OPC in lotus leaf had the capabilities of increasing SOD activity of senile mouse and reducing the content of MDA.

Key words: lotus leaves, procyanidin, anti-aging function