Abstract: This study was conducted to study the effect of saccharicterpenin on the quality of boar sperm in high temperature season (from July to September， 2011) in Zhejiang province， adding 400 g·t-1 saccharicterpenin in a diet of boar The result indicated that there was an increase in semen volume， density， motility and pH value， but no significant difference (P＞0.05) Meanwhile， there was significant increase (P＜0.05) in testosterone level In summary， saccharicterpenin can increase the quality of boar sperm in high temperature season.

Key words: boar, saccharicterpenin, quality of sperm