There are a lot of "fuzziness" features in interior design,which exist not only in the spatial sequence,but also in the segmentation of space,the interweaving of interfaces,the arrangement of furnishings,and the organization of colors. "fuzziness" is a unique design vocabulary that people strive to explore in pursuit of spatial diversity and richness. It is manifested in the uncertainty of the nature,form,and aesthetic information conveyed in space,and it can provide greater possibilities for the organization,transition,and change of space. This article analyzes and studies the spatial form to explain the aesthetic characteristics of "fuzziness" in modern interior spatial form,providing some reference for deepening the design connotation and promoting the artistic,scientific,and humanized development of interior design.