Astract: by using the Huangguan pear as a stuff, we have researched on and experimented with the influence of the ferment of the Huangguan pear which is caused by quality, temperature, sugar contenting(Bx) and the time. the we used the disign of L9(34) orthogonal portfolio to define the conditon that the Huangguan pear wine can be fermented. it proves that the quality of inoculation plays the most important role at the ferment conditions. then it is the quality of sugar. and sugar isn't as important as other conditions. And the optimum controlling condition should be as follows: inoculation , the temperature 25℃,the sugar contenting(Bx)18% and the fermenting time is 9ds. the wine which has been fermented is tempting, delicious, unique and nutrious.不太专业!~嘿嘿