目的 分析陌生化理论在扁平风格插画中的弹性表现及应用。方法 采用定性研究方法，以陌生化理论为基础补充插画设计的内在逻辑，提出从意象、构图与色块三个维度探究扁平化风格插画设计的弹性表现路径。通过《太空灯塔》扁平风格插画的设计过程展示，对扁平风格插画的弹性设计研究进行验证，以此证实插画设计的弹性输出路径具备有效性，为未来插画设计提供一种新的思路。结论 插画设计的弹性输出路径，即画面表现的形式与理念所保留的可变化空间，能够通过加、减、变形等方式重新根据变化规律组合画面来弹性地适应变化需求。弹性的变化规律为插画设计提供了新的思考方式，在提升插画设计深度与内涵的同时也为创作设计的形式表现提供了新方法。

The paper intends to analyze the elastic performance and application of defamiliarization aesthetic theory in flat style illustration. With the qualitative research method, the internal logic of illustration design is supplemented by defamiliarization theory, and it is proposed to explore the elastic performance path of flat style illustration design from three dimensions of imagery, composition and color block. By demonstrating the design process of the flat style illustration of "Space Lighthouse", the research on the elastic design of flat style illustration was verified to confirm the validity of the elastic expression path of illustration design and to provide a new thought for future illustration design. The elastic expression path of illustration design, that is, the changeable space reserved for the form and concept of picture expression, can be flexibly adapted to the changing needs by reassembling the picture according to the changing laws through addition, subtraction and deformation. The elastic law of change provides a new insight into illustration design, and new approach to the formal expression of creative design while enhancing the depth and connotation of illustration design.