A method for extracting phyllanthus emblicas is disclosed. The method includes: drying the phyllanthus emblicas producing phyllanthus emblica powder from the dried phyllanthus emblicas and ultrasonic extracting phyllanthus emblica extracts with 60~80% alcohols from the phyllanthus emblica powder at 15~30℃ for a predetermined time.本發明提供一種餘甘子萃取方法,其包含:乾燥餘甘子;將乾燥後之餘甘子製成餘甘子粉末;以及將餘甘子粉末以60~80%之醇類於15~30℃下進行超音波萃取一預定時間以獲得餘甘子萃取物。S101~S105‧‧‧步驟