During the product planning phase in QFD (quality function deployment) , the customers’requirements are very important for determining the importance of technical characteristics and even for optimizing the whole HoQ (House of Quality) . In this paper , the shortcomings of the traditional methods are analyzed , then fuzzy quality function deployment is discussed. The situation of multi-granularity and multi- semantic in linguistic statement in an2 alyzing and integrating the customers’requirements is considered ; the concept of entropy is introduced to determine the sale point in the process , thus the importance of customers’requirements is determined with more objectivity and reasonability.