Abstract: In order to explore the deastringency technology for dried areca nut, using dried white areca nut and black areca nut from Wanning City, Hainan Province as raw materials to analyze the effects of extraction temperature, extraction Time, and extract concentration on the deastringency effect of areca nut through single factor experiments. The best deastringency technology of dried areca nut was optimized by response surface method. The results showed that the best deastringency conditions for white areca nut were: extraction temperature 90 ℃, extraction time 5 h, and extract concentration 1%; while the optimal deastringency conditions technology of dried black areca nut were: extraction temperature 90 ℃, extraction time 5 h, and extract concentration 1.37%. The optimized deastringency method could significantly improve the deastringency effect of dried areca nut.