目的 对荥经砂器的创新设计提供理论指导。方法 从设计的目的性视角探讨仿生设计的分类及相应的设计方法，考察荥经砂器目的性仿生设计的现状，在此基础上，提出荥经砂器仿生设计中生物符号选择和特征提炼的设计建议。结论 荥经砂器正处于产品现代性表达的探索阶段，目的性仿生设计是其创新设计的重要方法，该方法的运用关键在于对有理、传神、重情3个方面的把握。

It aims to provide theoretical guidance for the innovative design of Yingjing Shaqi. It discusses classification and design method of bionic design from the perspective of design purpose, and then investigates the present situation of the purpose bionic design of Yingjing Shaqi. On this basis, it puts forward design suggestions of biological symbol selection and biological feature extraction. Designers are exploring modern expression of Yingjing Shaqi, and the purpose bionic design is an important method for its innovative design. The key of this method is that how to select biological symbol and extract biological feature from the three aspects of rational, vivid and emotion.