This essay investigates how the conventional idea of “white space” is used and integrated into contemporary neo-Chinese interior design. Through quantitative analysis and experimental verification, the study aims to assess the effects of white space ratio, color simplicity, material naturalness, embellishment density of decorative elements, and application of smart home technology on spatial visual effects, user satisfaction, and functionality. In this work, each design parameter is quantitatively analyzed using the comprehensive evaluation index \(E\). The findings of the experiment indicate that a variety of factors, including the density of decorative elements, color and material combinations, white space ratios, and cognitive level, significantly affect how visually comfortable and user-friendly a space is. A variety of white space ratios (\(\alpha\)), color simplicity (\(C_s\)), material naturalness (\(M_n\)), decorative element embellishment density (\(D_e\)), and intelligence level (\(I_t\) were set up for the experiment. Data were gathered visually, through questionnaire surveys and user satisfaction surveys, and statistical analysis techniques were used to process the raw data. The findings indicate that the best designs in terms of visual effects and user satisfaction have a high white space ratio (\(\alpha = 0.4\)), a high combination of material naturalness and color simplicity (\(C_s = 0.9\), \(M_n = 0.9\)), a moderate density of decorative elements (\(D_e = 0.03\)), and a medium-to-high degree of intelligence (\(I_t = 0.6\)).